Help selecting a present for my husband

Hi there,
I am trying to select a present for my husband. I probably won’t get the lingo right but he has used servos before and has changed a remote control car to be able to be used with software. I’m not looking to spend a fortune but looking for suggestions.
He also uses a raspberry pie.
Thanks!

Somewhere around 150-200?

If he’s used a Pi, servos and programmed before, we can suggest a lot, so it’s best to keep suggestions within a certain budget. For example, we might suggest a humanoid or other walking robot, but need an idea of which to filter.

Some ideas:

]DFRobotShop Rover: This will provide experience with Arduino and mobile robots. The autonomous kit may be the most relevant./:m]
]You can also consider an Arduino starter kit./:m]
]The ActivityBot Kit or Boe-Bot Kit (or Boe-Bot kit w/Arduino) may be of interest./:m]
However, if he is able to create a robot using the Raspberry Pi, he may simply wants some parts for his next creation. If you can casually ask him what he thinks his next robotic project might be, it can give us some ideas for the kinds of products he might need.