Configurable Beacons is a proof of concept mod that lets your change some aspects of how beacons work.
Currently it lets you change the way a beacon calculates its range (both horizontal and vertical). If you, like me, like building your bases deep underground this mod is made for you as it'll let you increase the vertical range beneath the beacon.
I plan on adding a way to remove / add valid payement items, if I ever get motivated enough to actually do it.
This mod is optional on both the client and the server.