Zap:
https://www.zapcreatives.co.uk/

Pin People:
https://twitter.com/ThePinPeople

PinMart:
http://www.pinmart.com/custom-lapel.....ick-ship-pins/

PinCrafters:
(Warning: Might possibly be costly, but please make sure that you keep contact with them so they know EXACTLY how you want it)
https://www.pincrafters.com/custom-.....mel-lapel-pins

Custom Lapel Pins:
http://www.customlapelpins.com/
(They at least do fast delivery, and money back if you don't like the service, but a little costly for a giveback)

QualityLapelPins:
https://www.qualitylapelpins.com/or.....ustom_pins.php
(Some etsy sellers I know use this / Must send for quote)

MetroPins
http://metropins.com/
(Old School District uses this one)

Thank you! I'll check these out!

No problem.
Just makes sure you do your quotes and ask for samples if possible!

http://www.furaffinity.net/user/firefeathers/ does pins really often. I don't recall who she used for this last batch, but they came out really really well.