Thinking on the kink fics

Okay so I know what pairings/fandoms I want to write for some of the kinks I've been given.

Worship - Jack/Ninth Doctor.
Aphrodisiacs
Breathplay - Jack/Ianto
Barebacking - Owen/Andy
Dirty Talk - Gwen/Owen.
Unusual/Extreme Positions - Jack's exploits with the twin acrobats
Painplay (Other)
Spanking/ Paddling
Voyeurism
Suspension
Bondage (Immobility)
Shaving/ Depilation - Jack/Ianto, shaving face with old fashioned razor.
Wild Card Kink!  - I have a few ideas ;) including tentacles, figging and double penetration (not all the same fic though)
Gun Play - Ianto/Jack
Public Sex -Jack/Ianto
Water Sports - this is the only one that I think that I'm really going to struggle with as it's a kink I really don't get.
Gags
Foot Fetish - Owen/Tosh
Bruises/ Bitemarks - Owen/Ianto
Roleplay/AU (Master/Slave)
Fucking Machines - Jack (because honestly Jack has probably tried everything once)
Consent Play - Ianto/Tosh (set post Adam)
Deepthroating
Phone Sex - Tosh/Penelope Garcia (criminal minds)
Knife Play - Suzie/?

Any suggestions appreciated :)