Following are pictures I found on the web. Now, the costumes that look exactly like the ones on the show are made by fans, from actual molds, they make the helmets, costumes run around $300 to $600 dollars. The inaccurate looking ones of course are cheaper. Now, there are certain costumes that don't look accurate and are made by fans, like Zedd, Rita, Megazords, Kegaleshia, etc. In japan, the regular uniforms (Jackets, etc.) are available for sale for adults. Saban should really license the suits, he would make a lot of money, like the Star Wars people do.

Rita, MMPR, and Zedd
Mega Yellow / Yellow Space Ranger, Kamen Rider Hibiki, and Gao White / White Wild Force Ranger.
Armored Dragon Ranger / MMPR Red and Abare Killer / White Dino Ranger
Rangers at Power Morphicon 2007Aka Ranger (Goranger) and Dyna Black from Dynaman at Power Morphicon 2007.
Change Dragon from Changeman
Oh Red / Zeo Ranger I and Jan from Gekiranger 
Mega Silver / Silver Space Ranger
White Swan (Jetman) and Bouken Red/ PROO Red
White Swan (Jetman) and Red Hawk
Tenma Ranger (Dairanger)
Go Green / Lightspeed Ranger

Kamen Rider ZX SIC version

STGCC Cosplay Kamen Rider Kiva

Stgcc 2009 Kamen Rider Kabuto

Mindanao Cosplay Summit 2010 Kamen Rider Faiz

Kamen Rider V3 @ AFA 2009
Kamen Rider Decade and Diend
RARE FAN-MADE CREATIONS
Black Lion Rio / Dai Shi
SPD Battlizer
Go-On Red and a fan-made Kegaleshia
Two girls as Tetsu/Deka Break and Lisa/Deka Bright
Boom for SPD (A combo of Boom's dream of being an Orange Ranger and the actual suit he cooked up). 
Deka Gold from DekarangerFAN CREATIONS
MMPR Movie Green Ninja Ranger, never existed.
I forgot the name of this fictional Ranger, I do know she wrote a fan fiction and then had the suit made.
Gold Ranger, Saboten-Con in Mesa, Arizona; A combination of Jungle Fury Helmet, Lost Galaxy and Ninja Storm Morphers.