Cupcake Lever Card

I have never made a lever card before, and adding buttons was new for me as well. I am also mailing it across the country so I'm hoping it will arrive in 1 piece.

 

Can anyone help me with types of glue? I used a Adhesive Dot Roller for the paper pieces, and glue for the buttons. But you can see some of the dried glue around the buttons... what should I use instead?

Done