I've done a bicycle that I sell at DAZ, and a sailboat that I sell at PoserPros, I enjoyed doing them, as a change of pace, but sales have never ben all that good. What might sell well would be a racecar (as above) with a driving suit and helmet and gloves for Mike, and a spectators set with halter top and cutt-off for Vickie (or maybe with the sexes swapped the other way). Of course, then you would have to have the abilty to make both kinds of Poser models! ;-) On the trademark side, DAZ (Zygote then) made me change the tiny logo on the watch face I did as part of the clothing set that was in my very first item for their store from "Timex", I gather they aren't that fussy anymore!