My 7 year old designs his own toys. He decided to take his shot at modeling a turkey for Thanksgiving. His skill with Tinkercad has been progressing. He used the scribble tool for the feet and the feathers. We worked on using the align and mirror tools. He also added mounting pegs and holes for the different parts.
I think it is his best model to date. He has named it Mr. Turkey.
My son did 99% of the modeling of this, but tolerances are a difficult thing to teach a 7 year old. My suggestion is printing the body at 102% and the head at 103%. The scale of the wattle should match the body and you'll have to work to get it into the neck. Everything else should be fine at 100%. You may need to adjust or do some post processing depending on your printer's capabilities.
The author hasn't provided the model origin yet.