Came across these on Mobaoku (an auction site designed for use with mobile phones, imagine that) today. Both have pictures, small, but they do give something of an idea of what the products are like.
Coloring BookShows the front cover, which you might have already seen before, but also shows the back cover which features the dragon from episode 1, and a pair of coloring pages featuring the sushi robot from episode 2.
Trading CardsSpread out so you can see what's on many of them. Seems like most of them are screenshots or official artwork that we've already seen everywhere.