Hi all wanting some gold

Hi all after buying one of those paydirt bags for my kids they where hooked been a while in my household when phones were cast aside and eyes were glued to the gravel. Now no offence to the seller he was fantastic and I he has overheads but I would like to buy some gold say $100 bucks worth at a time that I can sneak into the (new bag) for them to pan. Any help or directions much appreciated
Cheers Chris