What to do with an old 3G dongle?

Hi guys -

This is my first post.  

Basically I have a ton of IT gear lying around from disassembled laptops etc but I stumbled across an old 3G dongle from the 3 Wireless Network (UK).

I think I can unlock it with https://www.dc-unlocker.com but I wondered what else I migh be able to repurpose it into?

Could I stream media to it via a USB enabled TV?

Any suggestions for projects welcome.

Steve