Have your students use marker or colored pencils to write their name in rainbow colors. You can have your students write then trace their name multiple times with multiple colors, or have them just write their first and last name once on each line in different colors. I have my kindergarteners write their name in colored pencil, then trace it in marker. Second Trimester I typically save a scanned PDF that has a teacher written example in gray marker of their first and last name (showing how to correctly "bump" each line). That way I can just make copies as needed! Third Trimester, I give them the paper as is and they write their first and last names on each line themselves.