MeadowTon Blacksmith
Small buckles must be made in the workshop on Bird Isle. To do this, you need 5 iron ores and $100. Sometimes, you can also find small buckles for sale in the general stores, if another player has sold them recently.
You can find cool belt buckles at Spencer's, Hot Buckles, and Amazon. You can also find cool belt buckles at Buckle City, Cool Buckles, eBay, and 2Bhip Buckles.
On most isles, any isle with rocks! (I find Meadow Isle has a lot)
Belt buckles come in a variety of sizes and styles. Local accessories stores, where they sell belts, also sell belt buckles. They are also available at flea markets or online stores like Amazon.
I am not sure if there is any places in caves where copper can be found. But one way to get it would be to have a ranch and put a copper mine on it for 20,000. This will produce 30 copper nuggets everyday.
They have them in Journeys and on Ebay with buckles on them, but I haven't seen chains.
To find the Golden Sheep in Horseisle, check out the link below.
Anywhere in forests you can find them. They usually are not on horseisle itself, but if you travel you can find them. You can also find them on horseisle if you look hard. Sometimes people drop them on the ground. Then you can just pick them up.
at the dance lounge
most likely at your local swapmeet.
You can find Thoroughbreds on grass.
Please don't categorize this in the topic "Horseisle" as it isn't horseisle.