I've been tying up some foam hoppers that call for 2mm tan foam. Got two small sheets in the fly shop for $2.

Was in Hobby Lobby today and found the identical foam (at least I can't see a difference) for 79 cents. But that single sheet of "Funky Foam" contains more than 4 times as much material as the fly shop's package.

79 cents versus $8. Go figure!

Of course, running counter to Tyflies thread, I now have a potential lifetime's supply of foam hopper material.