What a lovely project!
The new races and archetypes you introduced are super-cute!
If you need a few ideas for wondrous items, I'd suggest you have a look at the King Mages' presents: gold, frankincense and myrrh.
Gold could be a magic case full of gold (size up to you) that daily replenishes (so you have always pocket money).
Frankincense could be sticks that when you burn them they create an area effect (where the smoke reaches) of your choice (depending on next days adventures, of course, so they can use them to progress).
Myrrh is an ointmment used for preservation - maybe one of them will pass away and the adventure will be about finding a way to rais him before the ointment effect expires, or maybe there will be a diversion of the adventure in the afterlife, before coming back...
Of course the precise effects should depend on next days adventures and challenges you have in mind as they'll help overcoming them...:-)
[edit]
BTW I just had another small idea about introducing some magic mistletoe that will make characters fall in love with the most unlikely mates... it may turn out to be quite fun...