It's not a silly question at all. I put a lot of thought into this too before I got my hedgie. 
Use a large drill bit and drill ventilation holes along the sides of the container, and on the lid. About the size of a quarter should be fine. This is your time to customize it, and you can make them in pretty patterns or whatever you want to do.
As for the lid, you can actually cut out a rectangular area in the lid for the wheel to be able to fit if you use a comfort wheel (you don't have to with flying saucers). I don't put a lid on mine, but my hedgie isn't much of a climber and I keep my cat out of the room. If you have a pet that might get in, or you get a climber, you might want to use the lid--and many people do so.
When it comes to a bottle, I bought one of those flat-bac bottles that had a screw for holding it to the cage and then drilled a smaller hole for that to stick through. It has a back that screws on to hold it in place. I offer both water bottle and dish for my hedgie, and he chooses to use his dish more often. It depends on the hedgie as to what they like.
Use a large drill bit and drill ventilation holes along the sides of the container, and on the lid. About the size of a quarter should be fine. This is your time to customize it, and you can make them in pretty patterns or whatever you want to do.
As for the lid, you can actually cut out a rectangular area in the lid for the wheel to be able to fit if you use a comfort wheel (you don't have to with flying saucers). I don't put a lid on mine, but my hedgie isn't much of a climber and I keep my cat out of the room. If you have a pet that might get in, or you get a climber, you might want to use the lid--and many people do so.
When it comes to a bottle, I bought one of those flat-bac bottles that had a screw for holding it to the cage and then drilled a smaller hole for that to stick through. It has a back that screws on to hold it in place. I offer both water bottle and dish for my hedgie, and he chooses to use his dish more often. It depends on the hedgie as to what they like.
