14 ga PTFE labret, flexible!
Quotes from Piercing FAQ
ORAL PIERCINGS AND WIND INSTRUMENTS
Because tongue piercings are usually placed just behind the bend in the tongue, articulation and single tonguing is not necessarily affected. To reduce intereference the barbell should be shortened as much as possible after the piercing has healed and opting for the smaller balls available for the gauge.
Double tonguing may be difficult because the contact spot for double tonguing is approximately where the piercing is placed. Flutter tonguing may also be difficult; some people lose the ability to roll or flutter their tongues with the jewelry in place.
Lip rings will prohibit forming a tight seal around the mouthpiece. Labret studs may also get in the way.
Reeds and mouthpieces trap bacteria. If the piercing is new or has not yet healed, consider using a new reed and disinfecting the mouthpiece using a mild bleach solution or household disinfectant safe for the metal or plastic of which the mouthpiece is made.
Rings and Barbells
Studs & Screws
Retainers & Expanders