POTA Catapult Boulders?

[Z-man 307]

I was discount shopping at Burlington and ran into one of these that was open:

https://www.walmart.com/ip/BLUEY-DUMP-TRUCK-VEHICLE/5710583559?wmlspartner=wlpa&selectedSellerId=0&veh=seo_fpl&cn=google

The rocks reminder me of the boulders that come with the POTA Catapult Playset. I personally do not have one, but I thought I would float this out there for anyone in need of extra boulders!