Derrek has launched a free sound pack for the Serum synthesizer instrument by Xfer Records.
The marshmello style pack contains 33 drum samples, 14 Serum presets and 5 MIDI files.
Marshmallow Template for Serum Vol. 1 is a free download through PUMPYOURSOUND. Requires SoundCloud and Facebook account.
More information: Marshmellow Template for Serum Vol. 1