From Gregory Mild...
My boy now 21 months old is doing both numbers on the loo. If you have children you appreciate how tricky it is.
I wanted to thank Sideburn as it was the only thing which made my boy sit on his bum for long enough to do the thing.
It is very educational, he can now recognize letter B thanks to BSA, as you can see on the picture.
Thanks a lot!
PS downside is that the number 5 is in shreds now, so need to order new one.