|Plastic and paper 3D glasses at eBay.
Or Google "red-cyan glasses". Just make sure you get Red-Cyan.
Much better, also for color, is a parallel viewer from Loreo, who have more models.
As for equipment: the Sony A900 with Zeiss 24-70mm and Minolta 75-300mm lenses; plus as soon as the shops opened a Loreo 3D lens was added. It has its little peculiarities. Also the Lumix Panasonic FZ40 which was bought in New Zealand where it was so damp the Sony had to take The Cure; it's pretty damp in Hong Kong as well but there it managed not to fall off the wagon. All in all, well over 5 kilos to shlepp around.