One colourful pencil, one Pokemon eraser, one wafer, two jellies, one balloon...
All done (got these zipped pouches for only 80sen/pc from Mr DIY)
The other important item was the cake. The bakery near my house usually stocks a lot of Princess/Barbie cakes. That crucial day, they didn't. Hubby's mission was to procure a suitable cake (it was a weekday and it would be cutting it close to get to the bakery in time for SE to choose the cake herself) and was happy to eventually spot a Little Pony cake.
Hmm Mummy says I'm getting a Pony cake
Hmff. I don't like this kind of Pony
She was not impressed haha. (I don't see what's wrong with these ponies?! Except maybe they overdid the mascara...) Oh well, there were no big tantrums, and we brought cake/party packs the next day to cries of "Happy birthday Su Ern!" from her classmates. Overall mission accomplished.
Update: Just for reference, the REAL ponies look like this: