I was too cheap to buy the pattern thingys. I bought a roll of fax paper. If I see a design I like I print a picture of it and used my scanner to make them differnt sizes. from 2" to 4" sizes then I trace it on the fax paper till I have the lenght I need.
Then I lay the paper out on the board under the carriage.
I bought some heavy clear plastic and place it over the paper so nothing happens to it and it doesen't move.
Here are a few samples of the designs I traced onto fax paper.