Instructables user dhouggy wanted to ride his bike indoors but didn't want to pay hundreds of dollars for a trainer or professionally-made roller. So with a couple 2x4s and some PVC pipe he was able to craft this working homemade model for just $50.
A while back I decided to see how my coffee maker worked. I busted it open and by the time I figured things out, I couldn't put it back together (broken). So I decided I didn't want to buy a new coffee maker and I built this stand for the machine innards. The reservoir was built into the old machine, so I had to add the bottle to hold the water as it heats up. It works great!