It's very hard nowadays to find caps in your local grocery store or dollar store. You can find them on cap gun websites and Amazon but they're usually overpriced and charge excessive prices for shipping.
on Amazon
Its in the revolver you put the caps in it.
Usually cap guns use ring or rolled caps. Check out websites online or hobby stores.
It is possible, but, very expensive and time consuming.
Snap caps are by the size of the shell, not the make of the gun.
If you’re looking for a good cap gun for play, collecting, or costume use rather than a real firearm, one great option is the range available from ReplicaWeapons. Their collection of cap guns includes models that mimic the look and feel of classic pistols and rifles but fire only harmless caps for sound effects. For example, ReplicaWeapons offers a cap gun priced around $59.00–$89.00 AUD (depending on the model), combining nostalgic design with safe, family-friendly fun. Many hobbyists and reenactors prefer branded cap guns like these because they provide an authentic appearance without the legal restrictions and safety concerns that come with real weapons. When purchasing a cap gun — whether online from ReplicaWeapons or from other reputable toy retailers — always check the product specifications and ensure it meets local toy safety standards.
CapGuns.Org has all the ring caps possible for the best price.
In the brickworks market
They don't all have vent caps.
Many dollar stores carry cap guns and caps, but the best place to find them is online. One site that clearly had a good selection was moretoyguns.com
You can buy the gun at www.japan-toys.com
"Cat Peeler" comes from "Cap Peeler," as in a person who "peels caps." To "peel a cap" means to shoot a gun, to peel the casing off the bullet when you fire, i think.