| I found this tacky plastic pencil box at the Dollar Store yesterday:
Tacky Pencil Box - Closed
I really liked how it slid open, though and thought it would make a cute box if done in cardstock.
Inside slides open. A lip on the sliding part hits the snap on the inside and keeps it from sliding all the way out.
So, I opened the parts up flat and took measurements. First problem – the inside is too big for a single sheet of even 12×12 cardstock.
Laid out flat
So I created a drawing of both parts in Illustrator to scale and then scaled them down equally to fit onto 8.5×11 sheets. I made at least two prototypes, trying to get the fold lines correct so that the inside would slide smoothly. Finally, I made a prototype in actual cardstock:
Closed
Open
Side View
I glued a regular magnet to the flap and inside the box. Note – you want to glue the magnets in after you slide the box together. I didn’t do that and kind of goobered the box getting it past the inside magnet. The inside magnet keeps the insert from sliding all the way out.
If you are interested in the pattern it is here (inside, outside) in PDF. Make sure you print at 100%. I don’t have any instructions with it right now but it should be pretty self-explanatory.