attaching paper to glass

[ilovehounds.livejournal.com]

i've made a gift for a friend. it's a decorative glass bottle with colored water in it. i made labels for the front and back and i'm not sure how to attach them. the part of the glass i'd be attaching them to is totally smooth and 90% flat.

the adhesives i have are:
*hot glue gun (which just sounds messy and lumpy)
*good ole elmer's (see above)
*scotch tape
*masking tape

i can buy some other adhesive tomorrow if it's not too expensive and it's easy to find. (i live in a small town)