I really like your cup holder, nice. I used poplar on mine and just stained different colors. I bought a 6' length of 1"x 6" and have quite a bit left over. I did seal it with urethane on the outside but not down the holes. I was so excited to use it I brought it in the house the day after I had it finished & loaded it up. Ended up taking it outside for a few days because I had stained down the holes and I guess it wasn't quite dry. All my stuff smelled like stain when I pulled them out, YUCK! Letting it set out & air really helped. I guess it wasn't competely dry in the holes.
Thanks for the compliments everyone. It was a fun project & I'm pretty proud of myself..