I've been printing and using the original for a while, but had a couple items where a front cutout would make it even nicer, so here's the remix.
Support is up to you. I usually print with supports but if you don't the underside of the top pegs will be a little messy but since that goes in the pegboard, that's not a big problem.
The author remixed this model. Imported from Thingiverse.