These small 1-inch black or gray geometric decals in the shape of Swiss Cross/Plus Sign will work great - not only for your modern nursery/children's room décor, but also in any other modern space.

Includes:
1 Pack Includes 50 1" Individual Crosses
25 Dark Gray + 25 Light Gray 
OR 50 Black

Materials:
High Quality, Self-Adhesive Oracal 631 Vinyl 

Made in the USA

Application:
Suitable for clean, smooth, or lightly textured walls. Some surfaces may not be suitable.