1. EZGO 20 Pieces (Size M) C-Shape Teeth Whitening Cheek Retractor, Autoclavable Dental Mouth Opener, Disposable Dental Lip Cheek Retractor for Mouthguard Challenge Game (Click Link to Check Price on Amazon)
Editor's Rating : 9.4 out of 10
Clear Color, C-Shape, Medium Size, Fit For AdultsEasy to Keep the mouth open and hands available for oral inspection and treatment

2. Watch Ya' Mouth Family Edition - The Authentic, Hilarious, Mouthguard Party Game (Click Link to Check Price on Amazon)
Editor's Rating : 9.7 out of 10
The Authentic, Hilarious, Mouthguard Party GameTeams of players, hampered by cheek retractors, attempt to read and interpret phrases

3. 20 Pack Dental Cheek Retractor Mouth Opener for Watch Ya Mouth/Speak Out Game Mouthguard Challenge C-SHAPE Teeth Whitening Intraoral Cheek Lip Retractors large&medium (Click Link to Check Price on Amazon)
Editor's Rating : 8.9 out of 10
Set of 20 Quality Dental Cheek Retractors ,Including 10 large & 10 mediumMedium and Large , fit for all your needs.

4. Mouthguard Challenge Game - The Crazy Party Game that's a Mouthful of Fun with Game Cards and More (Click Link to Check Price on Amazon)
Editor's Rating : 9.9 out of 10
Mouthguard Challenge Game - Includes everything you need to play this hilarious and fun gameContains not only speak out phrases, but also more "extreme" challenges

5. W-Plus 12pcs Retractor Intraoral Cheek Lip Mouth Opener C Type Use for Watch Ya' Mouth Family Edition, the Authentic, Hilarious, Mouth Guard Party Game - Medium Size for Adults (Click Link to Check Price on Amazon)
Editor's Rating : 9.1 out of 10
Popular for use with the "Watch Ya' Mouth" boxed game, as well as challenges that require players to recite words without the use of their lipsMade using medical grade polycarbonate material which is safe to be used in the mouth, and the smooth edges provide maximum comfort and prevent accidental slippage