This came to me as a guitar solo first, and then I decided it would be a great way to welcome Shabbat by adding a few simple words. This works well with both children and adults, and can used with choirs (using harmony where the violins come in). I've used this at camp and in the temple for both evening and morning t'filah.

Lyrics

Capo 1
Dm...............Am
Chiri biri biri bim bim bam
Dm...............Am
Chiri biri biri bam
Dm...............Am
Chiri biri biri bim bim bam
C............Bb...Am
Chiri biri biri bam (repeat whole part)
F...................C
Shabbat, Shabbat shalom
F................C
Shabbat shalom
F...................C
Shabbat, Shabbat shalom
Bb..Am
Shalom (repeat whole part)
Ending:
C............Bb...A
Chiri biri biri bam