These gloves were worn by the wizard Bucknard, who always maintained that speed was most important in spellcasting. This, because even if you royally bugger up the spell, you've got enough time to leg it away afterward.
Properties
Gloves 
Rarity: Very Rare
Weight: 0.5 kg / 1 lb
Price: 750 gp
Special
The wearer of this item gains:
- Quickspell Flinger: Cantrips that cost an action cost a bonus action instead. This effect can be used once per Short Rest.
Where to find
Sold by Lorroakan's Projection in Sorcerous Sundries