I won a couple of bids for Goofy banks on eBay but they lacked the plug or stopper at the bottom to keep the coins from falling out. I did a search for 'Goofy bank stopper' but only found plugs for piggy banks. I found an inexpensive group of them in varying sizes from Amazon (among other sites that had them for sell). It was a good price. I bought them one day and received them the next day.
I was able to find the right size for the two banks that I recently won the bid on. The package of plugs / stoppers came in a variety of sizes. I found ones that fit the banks. Now I can use them to put coins into.
search results for 'Goofy bank stopper' using DuckDuckGo.
Here are the stoppers / plugs that I received / bought from Amazon.
Here are the bottoms of the plugs / stoppers. It is the part that faces inward to the bank.
Here is the top of the stoppers / plugs. It is the part that faces outward from the bank. It came in a variety of sizes so I could chose the one that fits the banks that I have.
Here is the Goofy car bank. It didn't have the plug / stopper but the ones from Amazon fit it quite nice. It was good to have them in a variety of sizes.
Here is the Goofy bank where he is sitting down. It took a slightly different size of plug / stopper. It fit it quite nicely. Now I can use both to put coins into. I am glad I didn't just get one size of plug since I didn't really know what size would fit into it. It was easy to put into it. I have no doubt it will be easy to take out.
search results for 'piggy bank stopper' using DuckDuckGo.
They come in a variety of sizes; which is good since I tried different ones to see which one fits.