I always prefer to float kids art on top of a mat rather than cut an opening, as kids art has a tendency to be jagged, torn, saturated, ripply, crumpled and otherwise antagonized before the creative process is complete.
Floating the art can illuminate this process.
These are framed in classic gallery style: white mats, wide flat natural wood frames. I used tall clear spacers (and I think I wiped out all the stock in the Northeast of them--sorry framers) to raise the glass high above the art for maximum ripple.
Available soon for auction! Dig deep!