From the author's README on Thunderstore

Domino Crowns - Hats

Four fan-made hats that bring the Roblox Domino Crowns to skate. through ReSkate: Domino Crown, Red Domino Crown, Bluesteel Domino Crown and Viridian Domino Crown.

Install

Install with the Thunderstore Mod Manager (ReSkate community), then pick a crown in the character customizer (Hats).

Notes

Built with ReSkate Studio on a ballcap hat slot.
Sits straight up on the head (no ballcap tilt), with the ring shaped to the head so it hugs it all the way round without clipping.
Original Roblox crown textures, shiny like on Roblox, no cap stitching or logos.
Moves with the head as one solid piece.
Targets the skate. build recorded in .reskate-studio-patch. If the game updates, the mod may need a rebuild.

Credits

Port to skate. / ReSkate: devinzzc
Original designs: Domino Crown, Red Domino Crown, Bluesteel Domino Crown and Viridian Domino Crown, Roblox © Roblox Corporation.

This is an unofficial fan tribute. It is not affiliated with or endorsed by Roblox Corporation, Electronic Arts or Full Circle. If you are a rights holder and want it removed, contact the uploader.

Install Domino Crowns

You need ReSkate and your own copy of skate. on Steam.

Open ReSkateLauncher.exe and go to MODS.
Search for Domino Crowns and click install. The launcher also installs anything it depends on.
Press PLAY. In game, the MODS tab of the ReSkate menu (Insert) turns it on and off.

Or install it by hand: download the .zip and drop it on the launcher window, or unzip it into its own folder in Mods\ beside Skate.exe.

Maps show up in the ReSkate menu's level list. To join a server running a custom map, you need the same map installed. If the game won't load after installing, see known issues.

skatemods doesn't host or review this mod. The download comes straight from Thunderstore. Only install mods you trust, because scripts can run code.