Coin Door Flap #891-1109-16

The coin return flaps on many 90's coin doors were made from plastic and the tabs that hold them in place like to break, so here's a drop-in replacement. If yours looks like this, then it'll work like butter. Will not necessarily work with other coin doors, but you might get lucky if yours is close enough or a compatible clone.

For ultimate durability, print this with 95A TPU. The flexibility will make them virtually indestructible, but still rigid enough to do its job.

Print with the hex-grid (back) side on the bed. You will need supports on the side edges and the tabs, the rest will bridge just fine. If printing with TPU, make sure to set your support top gap to 0.35mm so it'll separate cleanly (may still need pliers or snips to remove the supports).