Beside 1:12th scale minis, my another favorite scale is 1:24th. I've been working on this scale and made some cakes for quite some time.
It's slightly different from my 1:12th scale work, the 1:24th cakes were more fruit cake while the 1:12th ones were and are more flower cakes. I guess this is because I lately am more with my big hand day. lol
The half scale cakes I made were mostly in ~7/16", but in some case I could make it up to ~9/16 and 19/32". It's amazing that some of my mini-collector friends also buy some 1:24th cakes too! It could be that the smaller scales are tiny and lovely that some of us just couldn't resist! :D