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120 Personalized Custom Wedding Favor Shot Glasses - love it
50 Personalized Shot Of Love Wedding Favor Tags / Place Cards / Thank You / Shot Glass Tags / Liquor Or Wine Bottle Labels - Vintage Style. $31.25, via Etsy.
144 Custom 1.5oz Wedding Favor Glass Shot Glasses by Factory21, $163.69
144 Personalized 1.5oz Wedding Favor Glass Shot by Factory21, $161.24 (Cute idea--not sure how much you're looking to spend on favors but this seller has a lot of options on Etsy for personalized shot glasses)