How do I 'chord' a song for a C-C diatonic bell set?

The chord represented just tell you what key the song is in. Like C stands for C major. Dm stands for D minor. If you want to make a chord use 1, 3, and 5...or ....c, g, d....that will make a C major chord...a nice happy sound. Try that then you could mess around with it or go to freesheetmusic.com and print off arrangments. :-)