If you can chop you can wire up a Swiss plug from Jumbo and the like.

Brown and blue go left and right and green/yellow goes in the middle if it exists.

From your local pound store in the UK you can usually get a 4-gang extension.... for a quid... I have one as we recently bought something from the UK with a block DC adaptor.

NB - VERY IMPORTANT - for US power, this will result in a burning smell. We're talking 220 volts not 110 here!!