That is AWESOME!
We had a neighborhood garage sale this weekend and one of our 'customers' bought something for $5 - she handed over 20 quarters and said "I hope you don't mind I am paying with all this change". Nope! It went straight to my WDW coin jar!
And just a side coin jar story - - back when DH & I first started dating he had a large jar of coins that he decided to cash in. After he got back from the bank he asked me to guess how much was in the jar. I blurted out some random amount and I was right .... down to the penny!!

That freaked DH out. Me too!!