L.M.
You didn't say where you live so I don't know if these ideas are right for you but how about instead of an actual gift a day out with just you. You can take him to the aquarium or Children's museum. If you want to do more. The aquarium has some great classes to take with kids as small as 1year. They only run 4 weeks so no long time commitment and my daughter is having fun in her class.
Good luck,
L.