I created a couple tiles, one including the letters RTJ, and mapped them to the original hand shapes using the pufferfish plugin for grasshopper/rhino.
Here is an example of the tiled letters within the shape:
![](https://i.imgur.com/oFbztLM.png)
Based on "[RTJ Hands](https://sketchfab.com/3d-models/rtj-hands-ar-version-b1f77a500ff74d7cbd0971c16107b87c) by [RTJ](https://sketchfab.com/runthejewels), licensed under CC Attribution-NonCommercial-ShareAlike.