Ponies.

Is he a pretty good mechanic/fixer of things? If so, tools.

Well I bought him a crowbar for Father's Day, so I doubt I can buy another one. He likes tools so ...

Maybe them.

Bungie cords. I buy them for my dad at least once a year, since they tend to get worn out or lost.

A Gundam

Well I bought him a crowbar for Father's Day,

Hubert's father is Gordon Freemen?

No.

Anyway, his birthday was two days ago. Now I have to plan for my own birthday in three days.