In 2012, Mattel in their MattyCollector line released a 1.1 scale ghost trap replica. In terms of dimensions, the trap is closer to being a GB2 trap than a GB1 as it sports the smaller battery box.
The replica comes with the trap pedal and has full lights and sounds. The doors open with a push on the pedal and even shakes as if the trap has a ghost caught in it. These replicas have become very expensive to buy, the only avenue for getting one being ebay seeing as MattyCollector has ceased production of them. The Matty Collector trap is perfectly acceptable for UK Ghostbusters clearance. Whilst a solid replica, please remember that should it break, it would be very difficult to repair or replace. To make the matty trap hang off your belt holster, you will need to replace the battery door with a metal one and add a vhook. Anchon offers these on this thread http://www.gbfans.com/community/viewtopic.php?f=31&t=28003
The Matty Collector Ghost trap, pedal, lead and packaging.