Super easy. I make them all the time.
I like smaller boxes rather then suitcase size, but this will work for both.
Hobby Lobby has everything you need.
I got 6 boxes plus a holder for $9.99.
Buy a 12 x 18 sheet of 3 or 5mm foam for $0.99 a can of spray adhesive and some cheap paintbrushes.
I picked up a container of 144 brushes at Michael’s years ago for like $6. It will take a lifetime to use them all.
Press the bottom of the box down into the foam, which will give you a template to cut around. Cut slightly inside the lines.
I like to spray the adhesive onto a piece of foil then brush it into the bottom of the box.
I find it less messy then spraying it in. Let the adhesive tack up, put the foam in then press around the edges. I usually set a piece of cardboard on the foam then place a couple heavy food cans or jars on top overnight.
Super easy. I figure it costs me about $3 per box and about 10 minutes to make each one.
SF
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