Surprise Top Hat
Spook your friends with this monster-popping trick hat!
Screwdriver
Model Wind Tunnel
Getting (or going over) the edge on Pinewood Derby day.
Solar Hybrid Hot Tub
A free and easy thermal assist from the sun.
Solar Tracking Platform
Use a solar-powered motor and a shade to follow the sun, maximizing its energy.
Heat Exchanger
Create fresh air without the energy loss.
The Trip-Cam
The Trip-Cam is a trip-wire triggered spy- and security camera. Sweet!
Hollow-Core Door Table
Replace a battered tabletop with an inexpensive door.
