Does anyone know where these go? I’m not finding them in the instructions online.

Does anyone know where these go? I’m not finding them in the instructions online.

You don’t really need them, but I believe the two little ones are spacers that you can use to give the battery compartment a little extra breathing room (someone please correct me here).
The longer piece is a mystery to me, but my daughter thinks it’s a magic amulet so she wears it on a string around her neck. 
I’ve used the longer piece around the lower part of the included screwdriver, kinda helped 
I heard back from ArcBotics - the long piece is designed to use with the screwdriver to provide more torque when needed, and the little pieces are to help hold the battery container on the shelf.
Thanks for posting this. I added in the smaller parts into the battery compartment and it makes it a little easier to get at the battery pack to charge them.
Can you share a pic? Perhaps I’m being daft but I can’t see how they would be used.