Need a poster and coaster made for a new business-Cell phone charging stations for bars

Esto es lo que buscaba un negocio en United States en su poster design

I am looking for 2 posters to be made and one coaster (thing you place your drink on) to be made. The posters are going to be placed in the bathrooms of a bar; in the mens room-above the urinals and in the womens-on the stall door. The colors I would like are neon green and black but open to other colors that are memorable and you feel works. What I am looking for are 4 things:

1. Be funny, not cheesy (reason behind this is humor stimulates a brain chemical that increases memory).
2. Be memorable
3. Be descriptive and visual in nature (reason for this is because since this is a new idea ppl need to know what the charging station looks like on the wall of the bar after they see the poster or coasters).
4. Be emotional in nature (ie stimulate the customers emotion more then their logic), Leer más