Today is Pi Day (the cool cousin of January 23’s Pie Day) and, to celebrate, we’ve compiled 10 fun and easy pie-tin crafts from the Popular Science archives.
What do a hipster chandelier, an amateur telescope, and a living-room jet engine have in common? You can make each one with an ordinary pie tin!
Click here to enter the gallery
A version of this article originally appeared January 23, 2013.