Tables and other objects

I have a hard time interacting with imaginary objects. i know we have done many activities involving imaginary objects, and some of them have been fairly successful, but they take a lot more concentration than anything else. I also feel like they either go really well or they are completely unbelieveable. There doesn't seem to be much in between, so it is hard when you get up knowing that it is either going to really suck or possible be really awesome. I don't feel like we had the same issues with the tube though. Even though we were forming imaginary objects out of it, because we had something real in our hands everything that we made out of it seemed to be real too.