Triceps and LOTS of jump rope:
Lying Single Arm Tricep Extension. I use anywhere from 12-15 lb dumbbells. Keep your elbow pointed at the ceiling. Take the end of your DB down to your shoulder and then extend back up. If you start struggling, you can use your other hand to help push the weight up. This is my favorite exercise for the triceps
The 2nd exercise is a Skull Crusher. Get a barbell and place hands close together. Bring the bar down to your forehead or top of head (carefully) then extend your arms back up. I use anywhere from 25-30 lbs.
I did 1-minute jump rope between all sets.