Twiglett,
I know this is from a while ago, but I was wondering how you did...did you give it a go?
Have there been any problems?
Has it worked?
The reason I asked is that I am a childminder with my husband and we are just a bit short on children (we can have up to eight) but rarely have more than one each day. So thinking laterally we wondered if this might work?
Sorry to hijack your idea....hope you don't mind!