I used TK-409's templates... or my mom did a pretty long time ago.
but I'm not sure theyre still on his site, I must have printed them out almost 2 years before I actually got around to them.
they're a bit big imo, but work well.
they were then filled with a piece of well... don't know what thats called in english.. in dutch it's "piepschuim", kinda like... correly white foam, same stuff they use to pack tv's, radio's, nintendo's, x-boxes ... heck even sewing machines, packed a plastic bag around it, taped it all together (so if the foam breaks it's still one piece) and then taped some black cloth over that, so you hardly see them.