I used my wedding colors -- canary, latte, terracotta, and red -- for the symbols. You can use whatever cute saying you'd like -- mine say "Two of a Kind" and "Lucky In Love", I also like "The Perfect Pair".
IMPORTANT TIPS or MUST DO'S:
1) Use a paper cutter to make sure your labels are cut straight -- you will be able to fit 12 to a sheet.
2) Do lots of test labels on regular paper to make sure they fit before printing on full sheet sticker paper, which can be bought at staples for about $10 for 30 sheets
3) The fonts I used are "Freebooter Script" and "English" -- if you use my template, first you need to download these for free at dafont.com or the template will not show correctly.
4) The template is designed for stickers that fit perfectly on the cards w/container currently being sold at Michaels OR the playing cards sold by the dozen on the Oriental Trading Company website. If you adjust the template, the margins and dimension will start moving so fix accordingly.
It's a super easy project that gives your cards a fun, personal touch!!! Here are the pics: