This pink heart has "I Love You Mom! written across it in a cute font. I absolutely love the soft colors, very pretty with a bit of child-like innocence. It's available as both a large transparent png and scalable vector graphic (SVG).
This image of a pink heart with a blue ribbon flowing around it would make a really nice card, the zip contains the SVG version so the print out would be beautiful and crisp. :)
Two colorful bouquets of party balloons tied with pretty ribbons carry the message "Happy Mothers Day!", this clipart is available both as a png and vector graphic.
This adorable picture of a teddy bear holding a heart shaped balloon is my favorite! The .zip has an SVG and png so you could even make a customized greeting card for your Mom, I'm sure she'd love it! :)
A simple but beautiful silhouette that shows the tenderness and love between a mother and her child. Again, because thee zip has an SVG and png this could be very useful for a crafting project or personalized card.
Here's a small, simple but very pretty image with cartoon daisies and it says "Wishing you the very best this Mother's Day!"