|affix the snaps|
Elastic + snaps = no sew & removable
These instructions are to take in pants a total of 2" or less. If you need to take in more adjust accordingly, though the more you take in the bulkier/more awkward looking it gets. Considering that the elastic will be on the interior of the waistband I used elastic made for underpants since it is nice and soft. This would work on adult pants as well - no reason for the kids to have all the well fitting pants!
If you're taking in jeans or other pants with belt loops, measure the distance between the side loop and the next one back.
If you put the snaps in under belt loops they will be almost completely hidden when worn.