Fish bowl jelly- an idea that didn't work!

I found some fish jelly sweets which I impulse purchased and I thought it might be fun to surprise the kids with their own little fish sweetie fish bowl. I even made blue jelly using water. apple squash, blue food colouring and gelatine!
Unfortunately the sweets all swelled while the jelly was setting and it really wasn't very obvious what it was meant to be. Ollie ate it up anyway but Max wasn't very keen on the swollen sweeties.
Maybe next time I will just push them in from the top just before serving. I also think the jelly was a bit too heavily coloured so less food colouring next time.