I bought an Epson PictureMate 500 at a garage sale. I bought it for $20. The person selling it thought it was some kind of portable stereo. I thought it was too until I examined it. It didn't have a power cord. It had an ink cartridge but I couldn't know if it was usable since I didn't have a way to power it (could be used with a battery but it didn't come with that either).
I also tried postcard paper that was made for printers. I separated it from the sheet; usually two per sheet. I fed them in a stack of singles in the back of the printer. It took awhile to get the printer head to print properly (it had not been used to print anything in quite awhile). Once I got it to print, I found myself creating a lot of postcards using photos I found online and ones I took myself.
I found myself creating cards for different holidays and just for the fun of printing them. I have found that they post office does not have a problem delivering them. I have found it is a lot of fun.