pop socket repair

The cap to my pop socket phone holder broke. It was held on by 4 tabs that fit into small slots in the plastic.
I made a replacement cap out of three different pieces of wood. I glued it with wood glue and clamped it. Then I cut it with an adjustable hole saw. But forgot to account for shrinkage when sanding, so it's a bit small. sanded, clear coated, attached with tiny nails with heads large enough to stay in the slots. I also glued in a piece of dowel to fill the hole.