1. Buy Daylight Aged Brew from Santakid, the bartender at the Silvermoon City Inn! There are 2 inns in Silvermoon City

You can just go to the one in the middle

Reference:

/wow/npc-16442.html

2. Buy the Magic Spring Deliciousness from Sareeni ?6?1 Morning Glory of the Farseer's Abode!

3. Buy Fireworks from Harris?6?1 Morningwalker in Clearwind Village