This IKEA play kitchen decal set comes in 13 individual stickers and includes the following pieces:
 
Microwave (4 pcs)
Left and right backs on either side of the microwave (2 pcs)
Oven front (4 pcs)
Right side cabinet (1 pc)
Long panel above the lower cabinets (1 pc)
1 backsplash sticker (in retro floral)

Backsplash sticker can be applied to a backboard or placed directly on the wall behind the kitchen (and it is moveable if you move the kitchen to different locations)

To add a backboard to your IKEA DUKTIG play kitchen I recommend using foamboard measuring 26.5″ x 12.5″. It can be cut down with a sharp craft knife. You can use small nails or a staple gun to attach it after applying your sticker. MDF cut to size would also work great!