
Simple, yet clever 1" dia. by 3" long plastic device to demonstrate the vortex effect of a tornado. Partially fill with water one of the two half-gallon size plastic soda bottles which you supply. Screw the bottles into opposite ends of the tube which we supply. Tip so the full bottle is on top and give it a circular starting whirl. Presto! You have a vortex. Call it a tornado if you're a meteorologist, a Charybdis if you're a classicist, or a whirlpool if you're into oceanography. Lots of fun and a fine opportunity to attempt to explain the effects of the earth's rotation on water draining out of a bathtub. The phenomena are related we're told, but good luck!!
![]() |
6667 TORNADO TUBE |
Just leave bread in a damp place. Or buy this stuff and make casts of solid objects, anything from faces and fingers to celery and crucifixes, with quick-setting Instamold. (We'll sell you 10 oz. of the Instamold compound, but you provide the water to mix it with.) Then fill the molds you've made with plaster, wax, or Permastone-yes, we sell Permastone too. It's an extremely strong casting medium with a clean white hue when set, waterproof and scratch resistant. Each can we sell has 1-3/4 lbs. of Permastone, to be mixed with water.
![]() |
90072 INSTAMOLD | |
![]() |
90073 PERMASTONE |
Zipseal plastic bag of the size gnomes use to store leftovers. 1" sq, 2" sq, 2" x 3" or 3" x 4" (our each come in bags of 100 count), clear polyethylene (the 2" x 3" 27906 has a white strip across one side, 36562 does not.). Store rings, small rock samples, biology parts, and model pieces. Great for cleaning up behind your Guinea pig when you take him for a walk.
![]() |
90273 POLY BAG, 1" | |
![]() |
27906 POLY BAG, 2" X 3" (STRIP) | |
![]() |
90274 POLY BAG, 2" | |
![]() |
36562 POLY BAG, 2" X 3" | |
![]() |
34552 POLY BAG, 3" X 4" |
They have the look of something designed for the space program. They're mylar, a paper-thin shiny metallic sheet, that comes in handy when your car breaks down in winter, or when you're separated from your climbing group on the slopes of Mt. McKinley. Barring that, they're also a perfect material for a do-it-yourself cold-climate Halloween costume-near impossible to rip by hand, but cut easily with scissors. There's no padding, so they wouldn't be too comfy on your bed, but they sure are warm. They both come folded about the size of a wallet. The Blanket is 52" x 82", the Sleeping Bag is 34" x 84".
![]() |
91007 EMERGENCY BLANKET | |
![]() |
91432 MYLAR SLEEPING BAG |
See psychedelic patterns the safe way! Press your hand on this 6" x 6" sheet of liquid crystal and leave a print of swirling colors that, like the mood ring of yore, you can use as a sign of your mood. The pattern will blend and fade in seconds as the crystals react to temperature. Tiny liquid crystals inside the film-like material react to heat by changing colors. As science, it demonstrates the way liquid crystal displays work. And you can cut it into pieces to incorporate into a science project. Or just leave it out for guests to play with when the party turns boring.
![]() |
91582 LIQUID CRYSTAL SHEET |
Whether you're a beginner or an experienced stargazer, with or without a telescope, you'll get more out of the night sky with a Miller Planisphere. This 10" rotating double disc is a map of the planets, stars and constellations, useful across a large range of the northern latitudes, although most accurate in the range of 35° to 45° north. It can be aligned to the time and date in your location to display a detailed map, and includes tips on finding the planets, suggestions for telescope projects, and more. It's an invaluable learning tool that makes stargazing a lot more fun.
![]() |
91720 PLANISPHERE |
WARNING: CHOKING HAZARD-Small Parts. Not for children under 3 yrs.
Back in the days when technology was a good guy, kids got diving submarines that they charged with baking powder and played with in the bath tub. Now kids can have the same fun again. We have found a (gray!) submarine, about 3" long, that can dive and surface up to a dozen times with a single charge of the baking powder that you get to supply. Comes with instructions.
![]() |
89189 UNDERSEA EXPLORER |
Spin the ribbed 7" handle of this hand-powered prop between your palms, and watch it take off. (If it lands instead of flying off into the wild blue yonder, reverse the spin!) Neon handle, bright, metallic-flaked 8" propeller, and a lift so high we imprinted it with our logo - the airborne Jarvis. It's all plastic, and won't decapitate anyone, but it's still for 10-year-olds and up.
![]() |
91482 SPINNEY-GIG |
Who’s an old bag? Watch your mouth. What we have around here are young plastic bags with clear complexions and tight zipper closures. Be sure to stock up on all of them! Each of the bags are 2 mils. Our each is a bag of 100 bags. Just pick the size you like!
![]() |
92904 BAGS, 5" X 7" | |
![]() |
34551 BAGS, 6" X 9" | |
![]() |
92905 BAGS, 8" X 10" |
We could have offered you 50 feet of 3/32" dia ball chain and a handful of connectors, but we're saving you the trouble of creating individual key chains. You'll get (100) 6-1/4" lengths, each with (1) connector.
![]() |
35495 BALL CHAINS |
What’s left of a Kansas City cow after all the steaks are gone? Lots of leather! (Think buckskin, not biker jacket.) You choose from: 1) The one-piece Lace Leather Belly. Really more of a long half-belly, this solid piece of leather is between 2-1/2 and 3-1/2 sq feet. Ours was black, approx 10-1/2” wide x 53” long x 1/8” thick. 2) A pack of Leather Strips. Ours was a very assorted 2 lbs of strips and larger pieces of leather, 1/16” to 1/8” thick, in rust and brown. 3) The Farmer Bundle Repair Bag, 2 lbs of scraps in various colors. Ours contained a solid 12” x 8” black piece and a very large bundle of brown leather thongs 47” long x approx 1/8” square. Lots of variety, and lots of heavy leather for the price.
![]() |
35666 FARMER BUNDLE | |
![]() |
35664 LEATHER BELLY | |
![]() |
35665 LEATHER STRIPS |
Click a phrase to shop for products associated with that phrase (AKA "Tag"). More popular tags appear bigger. Learn more »