User blog comment:Mr.123/On the Lookout For.../@comment-26382736-20160112035412

Feathers from Diego Marín Aguilera's flying machine - gives the user inventive prowess but will attract scorn from onlookers

Giovanni Martino's cavalry trumpet - lets the user survive death at the cost of someone else's life.

Halotus' poisoned feather - sucking on the feather negates the effects of the poison at the cost of turning the user's tongue poisonous.