Its not clear from your note what kind of weights you have access to, but there are all sorts of things you can do for your arms.
-- You can do the skull crushers 2 ways, with the arms bent or straight. Bent will target the triceps and straight will target the lats.
-- Do forward and side straight arm raises.
-- Do shoulder raises with the arms at 90-degrees at your ears.
-- Do other shoulder raises with the weights down and lifting to your shoulders.
-- Do bicept curls and hammer curls.
-- Do chest press and butterfly press while lying on a bench or a ball - this will help chest, but also some arms.
-- Kick backs with the arms.
-- Do butterfly while standing and leaning over. This helps mostly back and shoulders, but will also help with the arms.
-- Do pullups on a bar with hands both forward and back.
-- Sit on a step and lower yourself with your arms off the step.
-- Planks will help the whole body.
-- Finally, pushups and tricept pushups.