Bungie has release some collector's cards with codes attached to them. They can be redeemed at the Destiny website for in game bonus'. Each code is multi use, so there isn't really a reason not to share. A Bungie account is required.
Redeem here:
http://www.bungie.ne.../coderedemption
1: Warlock: YKA-RJG-MH9
2: Hunter: 3DA-P4X-F6A
3: Titan: MVD-4N3-NKH
4: Rixis Archon Slayer: TCN-HCD-TGY
5: Old Russia: HDX-ALM-V4K
6: Hive: 473-MXR-3X9
7: Moon: JMR-LFN-4A3
8: Gjallorhorn: HC3-H44-DKC
9: Duke MK.44: 69P-KRM-JJA
10: The Tower: 69P-VCH-337
11: The Hive: 69R-CKD-X7L
12: Valley of the kings, Mars: 69R-DDD-FCP
13: The Fallen: 69R-F99-AXG
14: Red Death: 69R-VL7-J6A
15: Cabal: 69X-DJN-74V
16: Venus: 6A7-7NP-3X7
17: Vex: Minotaur: 6A9-DTG-YGN
When you redeem them, you'll see a message that states "Check back in 2014", and you can check which codes you've redeemed as well to keep track of them
Redeem here:
http://www.bungie.ne.../coderedemption
1: Warlock: YKA-RJG-MH9
2: Hunter: 3DA-P4X-F6A
3: Titan: MVD-4N3-NKH
4: Rixis Archon Slayer: TCN-HCD-TGY
5: Old Russia: HDX-ALM-V4K
6: Hive: 473-MXR-3X9
7: Moon: JMR-LFN-4A3
8: Gjallorhorn: HC3-H44-DKC
9: Duke MK.44: 69P-KRM-JJA
10: The Tower: 69P-VCH-337
11: The Hive: 69R-CKD-X7L
12: Valley of the kings, Mars: 69R-DDD-FCP
13: The Fallen: 69R-F99-AXG
14: Red Death: 69R-VL7-J6A
15: Cabal: 69X-DJN-74V
16: Venus: 6A7-7NP-3X7
17: Vex: Minotaur: 6A9-DTG-YGN
When you redeem them, you'll see a message that states "Check back in 2014", and you can check which codes you've redeemed as well to keep track of them
