The Rapscallion skin is an Epic Fortnite outfit. Rapscallion was available via the Item Shop for 1500 V-Bucks and you can buy it from Fortnite Item Shop when it will listed.
Fortnite Rapscallion Outfit Details
Bail out of the Battle Bus.
Fortnite Rapscallion Outfit PNG Images
Here is the PNG images of Rapscallion below!