LARP Gadget: Mage Bracelet

[cheerio]

A Friend likes to play a Mage on LARP Conventions (Live Action Role Play) and asked me to help him making a Bracelet that does the light spell.

Status: Prototyping
MCU: ATtiny 2313 and ATmega 88
LED: 10 SMD White LED, 10 SMD RGB LED

Plan:
Interaction with touch controls on the fingertips. On/off Touchbutton on the forearm.
On the Bracelet there are small Crystals that will be lighted to produce the magic item effekt if it is activated
On the handpalm is a bigger crystal where all the 10 RGB LED will be placed (maybe also the 10 White LED)

Timeplan: finish in about one year (this project is extreme low priority)

I made a prototype board so my friend can code the patterns and interactions. I think he will continue around xmas.

I already have planned some additional stuff for this gadget that i will implement, but i got nothing presentable yet.

You did this already? You have suggestions? Feel free to post!