This is one of those "it's up to the lifeguard" situations. I think as a general rule Disney does not like boogie boards, noodles, toys, etc...but if the pool is not crowded and the lifeguards aren't having a problem seeing everyone - they may not say anything. If it is super crowded, they will only allow personal flotation devices.
Now, at the Yacht/Beach Club they rent tubes and you are allowed noodles, but those lifeguards are prepared for it. The tubes are clear, however.