Though some personalised favours can cross the line to too cutesy, I don’t think you’d have that problem with these cookies from Cutie Pie Cookie Co. (despite the name!).
The cookies pictured are from the couture range, but the company will also create cookies with any kind of visual from your logo (you’ve got a wedding logo, right?) to a photo. Actually, if you’ve got an incriminating photo, they’d be good for stag and hen nights too.