I had a spare painted fusilier figure, so I cut off the base carefully around the feet then trimmed and filed the excess from the bottom of the feet. I used a small piece of clear plastic which I chose as it wasn't too thick, a couple of dabs of super glue on the bottom of the feet and onto the base.
Below the fusilier tries out his new means of support. The edge of the base is visible but overall it looks better that the guardsman he is standing next to, not so 'clunky'. From above it looks OK, from low down it can be a bit reflective.