For general bondage play, these are my basics. All are available from Stockroom or many other sources:
Thigh-Cuffs
Fleece-Lined-Ankle-Cuffs-w-D-Ring
Fleece-Lined-Wrist-Cuffs-w-D-Ring
3-D-Ring-Locking-Leather-Collar
Silicone-Penis-Gag
Fleece-Lined-Leather-Blindfold
Bondage-Basics-Leather-Leash
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For E-stim
Standard TENS unit, dual-channel
Standard muscle stimulator (stronger contractions than TENS unit)
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For Enema play:
Standard bag/hose/nozzles collection...nothing too exotic
Glycerin suppositories
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General play:
Several butt plugs
Vaginal dildos
Dr. Ruth's Eroscillator with multiple tips
Speculums
Nipple clips and nipple suction devices such as snakebite kit suckers
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,,, like the song said: These are a few of my favorite things...