Sample filament spool

This is a solution to those annoying little rolls of filament that tangle up on your printer.

I was tired and frustrated with the filament winding around and getting stuck so i designed this so all you have to do is unwind filament sample however you want then tightly wind onto the roll. It even has small hole to hold the end of the filament but I suggest bending the ends a bit so they don't slip out.