It is best to make purchases of embroider cards from the place where you made the purchase of your machine that does the embroidering, especially if you wish to embroider Disney Characters. Not all places are allowed to sell these embroidery cards.
The Brother PC-8500D FS Disney Sew & 5x7" Embroidery does.
Embroidery cards are computer accessories with embroidery designs contained on them. Modern sewing machines can connect to computers, allowing them to read the embroidery card and automatically produce embroidery that matches the card.
There are many places one might go to purchase embroidery threads suitable for crafts. In addition to a local craft store, one might also try the Amazon website.
You can purchase used embroidery machines from your friends and relatives who may have some laying around. You can also buy them from a department store and you can order them online.
One can purchase a commercial embroidery machine in a number of different places. Commercial embroidery machines are available from Artistic Threadworks and on the iMachine Group website.
There are many places where one can purchase ex Pokemon cards. One may visit online retailers such as Wizards of the Coast to purchase these cards. One may also find Pokemon cards for purchase on eBay.
Items with embroidery designs can be purchased at many stores. There are many items on eBay such as clothing and tablecloths with embroidered patterns.
Disney embroidery designs are copyrighted and licensed. They can only be sold by select retailers. One such retailer is iBroidery. They have the Disney embroidery designs available for download for Brother customers.
Any local sewing supply store should carry embroidery machine thread. JoAnn Fabrics is one example of a large national fabric & sewing supply store. Many cities also have various small, local sewing shops where one could purchase embroidery machine thread.
If you are looking for t-shirt embroidery patterns then a sewing website would be the first place to look. Sites such as 'Sew and So', 'Embroidery Designs' and 'Izito' will all provide them.
One can purchase 2GB SD cards at Walmart, Kmart, and Target. The cards are also available for purchase from the websites of Amazon, Nextag, and Newegg.
Many of the embroidery designs available for purchase are basically patterns. Those just provide the groundwork, but don't really do a lot. If you have an embroidery machine, you can purchase software to automatically have your machine produce certain designs.