Whats the minimum recommended output for a faucet-like system? (April 2017)
Faucets in Bitcoin are outdated and economically infeasible today. Fees have been floating between 100 to 300 satoshi/byte. On some weekends they may drop to 20 satoshi/byte for a few hours.

To create a minimal transaction with one input and one output, you already have to purchase 10+148+34=192 byte. Even at only 100 satoshi/byte fee, half of an output with 43,478 satoshi would be consumed in transaction fee. Considering that you already paid for the output to be created, even with batching that's already ~60% of the value lost to fees. Unless you're about to dish out larger amounts, that's going to create more frustration than awe— and who would pay for that?