Cabinet aesthetics

I have a white china cabinet in the kitchen and I need something in there to liven things up a bit. I would like to add another shelf above the plates (aka the big empty spot on the right) but can't find little pegs that fit the holes (believe it or not!). 

Here is our cabinet:

I would like to wallpaper the inside of the cabinet to add some life - here are some inspiration photos:

via LonnyMag

Doesn't that look great? And the cabinet is almost identical to mine, save the middle separation on mine. 

via Design*Sponge

via Artessen

Now just to find the wallpaper and a free weekend to complete the project!