Making a wall climbing robot, where can i get the components ?

Hi guys, I am trying to create a wall climbing robot that will carry a load of 140g. I wish to create a wall climbing robot like this (Wall-climbing Robot with Suction Cups - YouTube) . My question is where do I get suction cups and pneumatic tubes suitable for such project? and what other components do you guys think i will need for such a project? Thanks! :smiley: