Hey guys! Those of you who make your own boxes, how do you make your inserts? I'm working on a box for my R.I.D. Spychanger kitbash, but I have no idea on how to make a nice insert. I'd prefer using cardboard since styrene and styrofoam supplies are scarce around here... The box is 10 cm wide, 6 cm high, and 3 cm deep. Any tips, pointers, and suggestions are highly appreciated! EDIT: Sorry about the measurements being in centimetres; we only use the metric system in the Nordic.