I've been searching this forum and google to try and get a plug in dimmer for my lava lamp which is getting hot too quickly. However I can only seem to find them in the uk and America. None in Australia. Besides Ikea which is 500 km's away and doesn't deliver.
I got one of these last year and I use it on my grande - it works a treat and I now run all my lamps on dimmers from these guys. They are in New Zealand but the plug and voltage are all the same - I've had no trouble what-so-ever. Super fast service and reliable. I also got a remote control dimmer system from them. I can run up to 6 separate dimmers from the one control unit and there is a "master off" switch for fast shut down at the end of the night (just turn your power point off too) - love it!
They come from a NZ electronics shop and you'll probably end up dealing with Paul - great guy and great communications. Let us know how you go,