Sure, Wilco.

Some of the songs I regularly sing at Jewish retirement homes which I think would also work well with kids are:
Tzena, Tzena
Finjan
Tumbalalaika
Sha! Stil!
Ocho Kandelikas
My Dreydl
O Hanukkah!
Zum Gali Gali
Dona Dona
Ale Brider ("All Brothers")
I Have A Little Coat
Hineh Ma Tov
Havenu Shalom Aleichem
Shalom, Chaverim
Lo Yisa Goy (Vine And Fig Tree)
Sovivon!

Others which are not as likely to be embraced by the kids are:
Bei Mir Bistu Shön
Hatikvah
Bashana
Sunrise, Sunset
If I Were A Rich Man
Matchmaker
Ma Oz' Tzur
Erev Shel Shoshanim
Erev Ba
Dodi Li
Los Bilbilocos
My Yiddishe Mame
O My Papa
Kinder Yoren