Heck, maybe I'll try my own. I prefer 5V wallwarts, skip the meager power of onboard regulator
fit 2 on a 3.8" x 2.5" pcb, just need to finish up powere/ground on top & bottom layer
Get 6 PCBs made up for $60 from epxresspcb, research prices for parts, all thru-hole components.
Then bag it all and get $10 ardweeny's from solarbotics and a piece of perfboard to put it on 