"I Know Who That Is..."

This person collects flags and WebKinz. This person has a Grandpa that likes to be humorous. This person enjoys tennis, making crafts, baking cookies, and playing the piano. This person likes butterflies and played soccer last summer. This person's dog is named Samie. This person has a sister that attends college. Do you think you know who this person may be? Here is one more clue, she collects rubber bouncy balls. Good luck!