CD Peekaboo Bag Collection In the Hoop Machine Embroidery. Pickle Pie Designs Peekaboo Collection includes 2 of their bestselling machine embroidery designs, each completely in the hoop. They feature a clear vinyl fronts so you can easily see what is inside. In the Hoop machine embroidery comes in the following formats: ART, PES, HUS, JEF, EXP, VIP, DST