Conversation so far:
What kind of toys did James May have?
The toys featured were Airfix, Plasticine, Meccano, Scalextric, Lego and Hornby.
Are Airfix, Plasticine, Meccano, Scalextric, Lego and Hornby animals?
Who did James May build a Lego house with?
In August 2009, James May built a full-sized house out of Lego at Denbies Wine Estate in Surrey.
What other projects other than Lego has James May done?
In 2013, James May created a life-size, fully functional motorcycle and sidecar made entirely out of the construction toy Meccano.
How fast did the motorcycle James May built out of the construction toy Meccano go?

Question: What did he build with Plasticine?
Self-contained rewrite: What did James May build with Plasticine?