I like that and would like to try as well...although I am a bit hesitant to mess up my machine with the dust.
Also wondering if this could be carved with a v-bit. I just bought one of the relatively cheap Chinese PCD bits on eBay
thay are intended for hard stone like granite (but in that case with a lot of water).
In the Aspire simulation for such a flat tip V form tool the seahorse did not look much different from a small ballnose. Maybe I should try something like that in wood first and then use it on stone with an extra vacuum for the dust.