GWOB can accept donations as a fiscally sponsored entity of 501c3 School Factory. So if a group wants to donate money to RHoK and have it be tax deductible, that is a possibility. School Factory takes 10% of monetary donations, but in-kind donations will be the event's outright. Any monetary stuff has to be written to School Factory, will be passed on as quickly as possible (2 weeks tops, can rush as much as the donator can).
Read about it here: http://atrium.schoolfactory.org/spacefed/node/28987
Submit donation information here: https://spreadsheets.google.com/spreadsheet/viewform?formkey=dEI4blVRYW5TMUk1YUk2c24zMlhscUE6MQ