Christmas Design Assets by Iconfinder - Sprinkle up your seasonal content with these festive goodies.
SocialSizes - Sketch templates for sharing images & videos on social media
Creative Market - Buy and sell handcrafted, mousemade design content like vector patterns, icons, photoshop brushes, fonts and more at Creative Market.
Platforma Flowcharts - Collection of cards for website and app prototyping
Christmas HQ - Totally free holiday icons, images, borders and fonts
Craftwork - A collection of User Interface resources made by Craftwork