Collage cards are challenging because they rather force you to be more creative so I went back to a few of my tags from Tim Holtz' "Creative Chemistry 101" for inspiration and came up with this card that is more "collage" than the samples from class? After the ink was dry I spread Rock Candy distress stickles over the Design Ticket stamp to pop it a bit which doesn't show up well in the picture but is a cool technique from the Chemistry class.
Stamps: Hero Arts "Musical Collage," Invoke Arts "Design Ticket," TJ Designs "Alice in Wonderland".
Inks, etc.: Tim Holtz spring and summer distress inks; Adirondack Archival black (allows you to work more water and color over the Design Ticket); clear embossing powder (flourishes); distress stickles (rock candy, gold).