Pokemon eggs by Ken Sugimori, in order Togepi, Elekid (official Pokémon Gold and silver art, circa 1998?), Cleffa, Pichu, Smoochum, Magby, Igglybuff (official Pokémon Crystal art, circa 1999?). Scanned and enhanced. Thanks to @pokechars http://pokechars.tumblr.com for suggesting this post.