I got this picture off the Birds and Blooms website. These darling ladybugs are just old painted bowling balls. The directions are shown on their webpage online.
It seems like these lawn decorations would last for many years, unlike the plastic stuff you find almost everywhere.
(Of course, if you've been tortured by the nasty, biting Asian Beetles that look like ladybugs, you probably wouldn't look on them very fondly.)