What fidget could suit my needs?

Hi everyone,

When I'm at home and I need to regulate I just start doing exercise, punching, throwing and ripping things. Love to throw ice cubes. I need to use my muscles.In my therapist office I can't do any of those things.

She suggested a squishy cube, but it is not nearly enough when I'm disregulated.

I thought of something with strong magnets to pull apart but they are loud and make me self conscious

I saw there are some resistant pastes too (putty?) but they don't break and don't have a fixed shape

Does anyone know about some fidget toys that could fit my need?

To sum up, the requirements would be:

- As silent as possible

- I have to use my strength to break it

- It "auto repairs" as a magnet would do

- It does not have too many parts: I saw some fidget toys that have a lot of magnetic steel balls together, it is too much elements for me

Thank you to anyone who takes the time to help me 👏

Ps: sorry for bad English