I purchased a copy of Hive Pocket earlier this year and have enjoyed a number games with my daughter. Unfortunately, we misplaced a black grasshopper piece (we looked high and low, and I have no idea how we could've lost it.)
Anyway, I contacted Gen42 to ask if it'd be possible to purchase a single piece. John Yianni responded within a couple of days, offering to send us the missing piece.
Thrilled with the level of service! I may just have to add Hive Carbon to our collection sometime in the future!