So far, modelling a mascara bottle was the most challenging thing, for me, because when I made the model, I made the insides of the object as well as the outside, including properly tapering the threads on both the inside of the cap and the outside of the bottle top. I made my own textures, logos for the cap and side of the bottle etc... without once looking at the manual. This was not because I knew what I was doing, but because I wanted to see if I could make anything without looking in the books :-) Everything in it was a first for me, first proper model, first textures etc... But it was fun. Shanna :-)