I bought this nice helping hands to hold my work while soldering but it seems to be designed only for very light objects unless it is clamped into something; otherwise it will tip forward. The problem with this is that there is no acceptable place for me to attach it onto my desk.
I would like to simply add a very heavy weight to it between the clamp so that I can position it anywhere I like.
What can I buy very cheaply that is both small and dense enough to provide a good amount if weight to this? Ideally I would like for it to be at least 1lb but the heavier the better. The clamp itself has a clearance of about 50mm.
I did look for rocks outside of my apartment but they were all too light.
I also tried both double sided tape and a cell-phone grippy mat. The tape does not adhere to the material of my desk and the grippy mat does not adhere to the helping hands base. I could use some very strong mounting tape but I would prefer something mobile.
I am currently using my Ti-83 as a counterweight but this is less than ideal.