Recently, I came across an old book of mine. Its a packaging book that
I purchased when I used to do a lot of graphic design. In that book, I
found a bunch of templates for all sorts of boxes and containers.
Included in the book are a number of locking methods for boxes. Very
useful I think for paper toy designers, specially for those who like to
Check out the rest of my post here
I hope you guys find it useful.