I’d keep working my day job and melt them into basic jewelry like rings and crosses and pawn them over time. Say I’m getting them at estate sales or something. Use the cash for day to day purchases, buy used cars, etc. Could probably start flipping other stuff to generate more income/muddy the waters in case anyone does look further into it. Gradually work lesser amounts of cash into my bank account. Wouldn’t need to buy anything crazy because I have simple tastes.