I use this (below)and you could use marbles garvel, stones or something in the water if your afraid of drowning, there are many similar types of waterers large and small. It is low enough for chicks to get their head over and drink,
I use a low profile chicken waterer. Chicks can drink from or stand on edge and drink. I also use rubber tubs for water, but put them outside for the large chickens which free range.