Blood for the Baron!

http://cgi.ebay.co.uk/ws/eBayISAPI.dll? ... K:MEWAX:IT
A nice little bargain for a customization.

I think I've seen a similar one before Humby and the back section is sealed, so I think it's only the turret that's really functional. I guess for 99p + postage it may be worth a go.

The back section is a removable battery box.

Excellent