I am still missing quite a few items, and thought to put what I can remember here...

Enchanted Daylight Quell Plushie
2 Astro Makers from finishing the Beast Missions (one a potion, one a plushie)
Other mission makers/costumes, from Tarquin, Trunx, and Trotters.
A Trotters trading card
100 hundred dukka coin

I feel there is more but I honestly cannot remember, but these I know for certain.