I found many plans online to make one of these, but couldn't locate a suitable plastic/plexiglass for the tunnel. If you have ideas for this, please let me know. I looked for quite some time, but only found 150 yards of it which was a little overkill for my needs. I have been drooling over the wind tunnels for quite some time, so finally bit the bullet and sprung for one. As they mention on their website, it's cheaper to get the fan from Amazon. I wanted the tunnel for a nature inspired tinkering program, but find we are using it in so many ways!
Just recently, one of the kids in nature preschool was curious about his superhero taking a ride on the wind! He tested it and realized it didn't work. Later he tested a rock. The wind didn't move it. We started thinking more . . .
We noticed the feathers went up so easily through the tube. Why not the toy superhero? We grabbed a scale to do some comparisons. He even tested out another toy with the scale. We never got close with the feathers!
We also had a Fairy Wings and Wild Things festival. We had supplies ready to make their own magical creatures
It's magical! The children love the cause and effect exploration of the tube. I like that it is easy to use, required minimal set up, is sturdy, can change the angle and speed of the wind, and is engaging! On the website they mention this would appropriate for classroom use. I found that is was great with small groups at a nature center or at my house.