Luckily, there are many ways that you can amuse yourself in these situations.
Sorry, I unfortunately do not have my camera in the room out of respect of my roommate's privacy, so I hope that my illustrations will help.
Step 1: If you can, go for a walk!
Hooked up to machines and tubes? Often times, your nurse can help you make them portable by getting a roller cart for an IV or other medical device. I was surprised when they were encouraging me to walk with my chest tube, but it felt SO GOOD afterwards, and definitely helped break the monotony.