John 3:16 is one of the most well known and reassuring verses in the Bible.
For God so loved the world that he gave his one and only Son, that whoever believes in him shall not perish but have eternal life.John 3:16 (NIV)
The following is a little craft I threw together back in 2010 for my wife to use with her kids in her Wednesday night Awana Cubbies class (ages 3 and 4). To this day, it remains one of the most popular posts ever on this site.
The verse for the week was John 3:16, so I made a cross with pictures they could color before constructing the craft. You can click on the picture below or this link for a pdf version of the craft.