OOOO good luck, I'm sure you will be fine I usually find that everythig I plan goes to pot and I end up just going with the flow, I ended up singing nursery rhymes to my last inspector must of been ok though cos got a good report
Just do what you always do have you got some toys that the mindees havn't played with for a while? (we have some very annoying, noisy things that only come out occassionally) or why dont you make some feely boxes, put a load of kitchen type things in a shoe box with a cover on and see in the kids can guess what they are?
Aww good luck, just be yourself, do what you normally do and pretend you just have a friend visiting. No point getting stressed. At the end of the day you, your mindees parents and kids know you do a good job.
(PS - I find having them talk about themselves is very useful!) The one I had "knew it all" and was very happy to talk talk talk about herself and saving the worlds problems. Definitely distracted from the actual inspection! lol