Created in Source Filmmaker
Space Map Remastered: https://steamcommunity.com/sharedfiles/filedetails/?id=673815317
Derpy V6: https://www.deviantart.com/aeridiccore/art/DL-Overhaul-ReVAmped-Ponies-V6-816266636
Mailmare Uniform with the Package and the Letter: https://www.deviantart.com/dracagon/art/DL-SFM-GMOD-Mailmare-Uniform-797282099
Muffin: https://steamcommunity.com/sharedfiles/filedetails/?id=321889422
TARDIS V.2: https://www.deviantart.com/astonov/art/DL-UPDATED-V-2-TARDIS-for-SFM-373466414
HD Planets: https://steamcommunity.com/sharedfiles/filedetails/?id=1338099527
BTTF DeLorean: https://steamcommunity.com/sharedfiles/filedetails/?id=420173156
BTTF DeLorean Particle Effect: https://steamcommunity.com/sharedfiles/filedetails/?id=539449941
UFO from TF2 Invasion Assets: https://steamcommunity.com/sharedfiles/filedetails/?id=530101231
Wheatley from Portal 2: https://steamcommunity.com/sharedfiles/filedetails/?id=270444571
Spacedock from Star Trek: https://steamcommunity.com/sharedfiles/filedetails/?id=1347542028
Century-Class Ship from Star Trek: https://steamcommunity.com/sharedfiles/filedetails/?id=1354655763
and other props from various Valve Games.
DeviantArt Link: https://www.deviantart.com/alicorntwilysparkle/art/SFM-Interdimensional-Mail-821614333