DL, The Sunday Seattle Times says you can mark duct tape and attach to the buoy:

Sport fishers are limited to one shrimp pot per person, with a daily limit of 80 shrimp. Pots must conform to gear specifications in the rules pamphlet. The pamphlet also describes legal buoys.

Other regulations for Hood Canal shrimp fishing include:

• Any shrimp caught over the individual fisher limit of 80 may be passed to other licensed fishers on the boat that don't have their limit. After the boat limit is reached, shrimp must be returned immediately to the water unharmed. Each limit must be kept in a separate container. Fishers may remove and discard the heads from their shrimp while on the water.




• Each vessel in the fishery may have on board and operate no more than four shrimp pots.

• Pots may not be set prior to 9 a.m. and must be removed from the water by 1 p.m. each fishing day. Each fisher must set and pull his or her own gear, although a second person may assist the pot owner in operation of the gear.

• Once a person has reached his or her limit another person may fish the gear as long as the identified pot owner is aboard. Another person may attach a buoy bearing his or her name and address to the pot and continue fishing for a separate 80-shrimp limit. It is acceptable to securely affix duct tape to a buoy and legibly mark your name and address. However, only one name and address may appear on any buoy.