It helped, but then I just ended up with a bunch of drawers that looked like this.
Not really helping anything.
Then one day I was at the Superstore and found these clear plastic pencil cases. I liked that they were different sizes and it was a pack of 4 for $1, so I really couldn't go wrong. I grabbed all the ones I could find and ended up with a dozen different sized clear pouches.
Now it's easy to have different pouches for different categories - jewellery, dolphins, small lego pieces, miniature ponies, etc. So instead of digging through a whole drawer of stuff when she starts freaking out that she can't find her tiny lion, I can now just go for the pouch with the tiny animals in it.
They still get dumped out all over the coffee table, but I don't think there's any avoiding that.