He shook his head with a small smile, "I'm not sure... Do you know what you would like to make?"

This was for Inigo after all, anything he wanted to make Taiki would help with. He didn't know what was going on but Inigo had seemed worried when Taiki had first seen him and so he is determined to try and cheer him up.

"Most people build castles, I think they are easiest..."