Almost 20 bouncy castles - worth £15,000 in total - have been stolen from a company in Bristol.
The theft took place during the Christmas period from Hyper Inflatables in Fishponds.
Police say the 17 inflatable castles could have been taken at any time between 22 December and 5 January.
Mark Probert from Avon and Somerset Police said: "We are keen to hear from anyone who has been offered a bouncy castle for sale in the last few weeks.
"These are items you would usually buy from a specialised dealer."
Police are appealing for anybody who may have seen the castles being removed during Christmas to contact them.