Dave needs a lifting handle. It needs to attach to the “Lego” holes on each side of a GoPiGo3 top plate somehow, be around 5" high and not cut fingers when lifting the bot.
GoBilda parts would be one way.
The holes on either side of the top plate are 96 mm apart. GoBilda parts have an 8 mm pattern.
For esthetic consistency I think I’d make a handle all out of square beams: https://www.gobilda.com/1106-series-square-beams/
The 104 mm beam has holes 96 mm apart (https://www.gobilda.com/1106-series-square-beam-13-hole-104mm-length/) for the cross piece if you wanted to place it on top. Or you could use the 88 mm if you wanted to mount it in between the verticals. You could use whatever vertical height you wanted. You might want to take a fine file to smooth corners, but I don’t think the edges would be that bothersome.
They also have round standoffs or hex shafting you could use for the verticals if you mounted the cross-beam on top.
Just a thought. And the beams would provide mounting points for other things if you ever needed such.