We are using handled mason jars with names labeled on them. Kind of like this..
http://www.etsy.com/listing/121558569/set-of-3-mason-jar-tumblers-with?ref=sr_gallery_3&sref=sr_5a50d742c26ceb8a1f8e5e0c68bd78d8b4a6b4fa96427095e1c256227f4e5415_1368194581_14224306_tumbler&ga_search_type=all&ga_includes[0]=tags&ga_page=1&ga_ref=related&ga_search_query=mason+jar+tumbler&ga_view_type=gallerySome guest will be with a plus 1 and we won't know the name of that plus one to be able to llabel the mug for that person. Is it okay to ask in the invite for the name of the plus 1?? If not then how can I mark the mug to let that plus one person know it's specifically for them?