Ask HN: Supplier for Programmable LED T-shirts or 'erasable' T-shirts?

Thanks for reading:

I am seeking advice from the community regarding suppliers of T-shirts with Programmable LEDs or shirts that have an erasable area?

Preferrably someone willing to do a small batch (< 100)

Example: http://www.fatwallet.com/HandHeldItems-coupons/offer-528267/