Instead of purchasing pre-made masks, why not make your own mask using a kitchen plate? That's exactly what I did for my Jugglers layout.
Materials: My Little Shoebox papers, Shimmerz Vibez in Sunset Strip and Shimmerz Spritz in Caribbean Sunset
I simply took a piece of scrap paper, traced my kitchen plate and used the resulting circle to mask off the center of my background paper. I spritzed using Sunset Strip Vibez and Caribbean Sunset Spritz. To make my masking stand out more, I sewed around the edges using white thread.
Have fun with this technique!