I'd carry around all those quarters in a backpack, and then when the opportunity comes that someone yells out "Does anyone have change for $10,001?" I can yell out "Yes!" and open my bag.
I worked as a vault clerk and counted money all day. We would get our quarters in a box of $500 from the bank. Those boxes were heavy. Imagine 20 boxes. Each roll is $10 and has 40 quarters.
.00567 kilograms x 40,000 quarters= 226.8 kg=500 lbs.