Toy Frames and the Mystic forge?
Here you go: http://wiki.guildwars2.com/wiki/Mystic_Forge/Miscellaneous#Tonics
Good luck.
I think they’re discontinued, which is why the stuff, dust and cogs you required now can be exchanged for gifts at the festival vendor NPCs.
Lord Sazed / Hasla the Huntress / Seaguard Hala
Seamarshal Belit / Initiate Xun Tsu / Mistwarden Roshone
Seafarer’s Rest | Northerner @ Dragon Season
Seamarshal Belit / Initiate Xun Tsu / Mistwarden Roshone
Seafarer’s Rest | Northerner @ Dragon Season
Actually I experimented with the recipes that Inculpatus posted. They work, but there’s still some RNG involved as to whether you get the everlasting tonic or not.
Corwin Grimjaw: Guardian (80)
Yak’s Bend Server
Crimethink [ct]
Yak’s Bend Server
Crimethink [ct]