Actually I think that Spuffybot sounds much better than Botbike, which to me would imply a story in which the Buffybot defeated Razor and the hellions, acquired a Harley, and fell in love with it. Hmm. Perhaps I should write that one... no, I think not.

This post has inspired me, however, and I'm going to do a pairing that totally breaks your rules and uses only the 'Sp' prefix from Spike but uses the whole name of the other character. I just can't resist the thought of 'Spampata'.