Tim encourages everyone to create their own pieces using their creativity and imagination, but he is right there to assist with how-to or suggestions. Mario (who did a lot of the preprep work for us) was there to patiently drill any holes exactly the size, depth and location we wanted.
In addition, Tim graciously allowed us to purchase (at a very reasonable price, I might add) vintage props that he found in Paris as well - antique binoculars, cameras, rusted tins, crochet balls. I bought one of the binoculars (complete with case that I will use on another project) for my bird to perch upon.