Two boo trinkets. I am resigned to earning them again come Halloween. Thanks for the responses! Patience is a virtue.
You could try your luck with the teekl buckets once the event returns (if they don't forget to turn on the buckets again) they have a chance to drop unatunned boxes with the boo trinkets and those are account bound, they attune to level 66 just like the ones from the vendor but you can move them around your characters as long as you don't open the box Edit: Almost forgot, regarding your question, you can restore any item as long as it is in the last 20 you've deleted and if you got membership you can restore 1 for free every month, and they don't stack so if you go 1 year without using them you'll still have just 1.