I 've been saving all my 6061-T6 scraps for ages. I was planning to do some
casting with it, but now that I am getting close I find that 6061 - T6 is
reported to be not very good for casting. I wasn't planning to make
structural parts out of it or anything, but is there anything I can do with
the stuff other than sell it to the recycler for pennies on the pound?

Seems like it has to be formed at pressure and temperature to be of much
use.