Looking for Expresso tamper kits

[mctabish]

Hello,

I have a site that sells pen kits for people to make.
The other day, one of my customers asked if I knew where I could get "kits" to make expresso tampers.
I myself am not familiar with these items, but was wondering if some one could point me in the correct direction. I am a retailer, so a wholesale source would be best.

Thanks!
Bruce