Found broken off on Lake Keowee couldn’t locate bush or shrub or tree it came off of.
Hi Cydney,
actually what you have there is an insect gall formed by a wasp, and fallen from an oak tree in the vicinity. There is more about it here:
http://www.roundrockjournal.com/?p=607
Sincerely,
Dr. Steven R. Hill, Botanist, SCNPS