As part of the recent pi protoplate/connector group buy we included funds for Adafruit, the authors of the open hardware PCB design we chose. We ordered 25 boards and aimed to include $1 per board kickback for Adafruit.
The final numbers are $169.54 paid after paypal fees, the pcbs were $80.55 inc shipping and the connectors $55.40 inc shipping (from Adafruit).
This leaves the $33.59 to be sent to Adafruit today. This leaves 33.59 for oshwa.org.
It’s important to realise the open hardware is free to use but not always free to create. Where possible, always try to offer some benefit to the designer of the product even when they haven’t explicitly asked for it.