Say how many to collect and what they get.
Short works best: Free, Treat, 50% off.
The rules, your link or your address.
Optional. Square images look best.
Colours
3.5 × 2 in, 1050 × 600 px at 300 dpi.
The sheet fits ten cards at business card size on US Letter paper, with thin cut lines. Set the scale to 100% and turn on background graphics in the print dialog, then cut along the lines or use a paper trimmer.
Free Loyalty Card Maker by Hiyaly