I found this site where you can print letter-sized gift wrappers for this Valentine's Day. They also have designs for other holidays and events.
They have designs that are ink-friendly (those with a white background like the top left and the bottom right)... and some of them are not.
Last December, Paper Crave shared some printable gift wrappers for Christmas. Some patterns can be reused for Valentine's Day, like the chevron and the mod poinsettia designs. You can download their free printables from their website for a limited time.