Easy! just log in and find that nice guy, hmm what is name again? oh yeah it came back! Hanumanx!!
go see him, ask him for a cracked water jewel and put 99.9m in trade window
the guy will be super happy and you will feel so good to have make that good deed!!!

and then just repeat until u spend all your billion!!!

Well, this is what i would do!!

-Hanumanx