Two quick models for cloud cookie cutters to give some lightness to your sweets. Tested on gingerbread cookies... which were gone too fast to take photos of. :D
The second cookie cutter is designed to resemble a bit a sheep.
I recommend not to scale down the models as the walls may get too thin.
File 1 (Clouds1.stl): Size is about 100 x 72 x 15 mm (3.9 x 2.8 x 0.59 in) and I printed it at 0.2mm layer height. Print time: 38 mins, material: 8 g.
File 2 (Clouds2.stl): Size is about 102 x 66 x 15 mm (4 x 2.6 x 0.59 in) and I printed it at 0.2mm layer height. Print time: 39 mins, material: 7 g.