Just like the Title says, make your own exotic.
Here's couple I'd like to see:
Name: Young Ahamkara's Hunger
Flavor texted: [i]Give me your soul oh bearer mine, let me feed it to the hungering void...[/i]
Armor slot: Chest Piece
Exotic perk: The Hungering Void
Perk description: Grants Bloodbound.
I'd love to mix this with Blackhole!
Name: Will of Saint 14
Flavor texted: [i]His light glows brighter with us.[/i]
Armor Slot: Chest piece
Exotic name: Will of Light
Perk Description: Grants Blessings of light.
This would help a lot in raids because you can spec for Blessing and Weapons of Light. Could be pretty useful in PvE
Name: (Sorry haven't thought of one yet. Feel free to offer names)
Armor Slot: Helmet or Boots
Exotic Perk: Shattered Void
Perk Description: Grants Shatter
This would be pretty good when mixed with Vortex or lance. The Vortex could be helpful in PvE (although with how bad Nova-bomb is in PvE...) but I think it would be pretty good for PvP seeing as it can be used to cut enemies off from a certain area such as a control point.