I have a big family too. Year before last, I made all of the girls (and some of the boys) cute little bath sets. they each had:
1. one of those washcloths you can get for a dollar that comes all bunched in shrink wrap and expands when you get it wet (I think I got them at old navy near the registers).
2. A cheap bar of colored glycerin soap from the dollar store because I didn't feel like making any.
3. Bath cookies (the recipe is here
with a lot of others)
and 4. bath salts (homemade) - I got this recipe from aromathyme.com because I couldn't remember where I got the original one I used. They have some other good recipes too, so check their site out.
# 2 C epsom salts
# 1/2 C sea salt
# 4-6 drops peppermint oil,
# 2-3 drops red food coloring
# Place 1 C of epsom salt and 1/4 C sea salt in a bowl.
# Add 2-3 drops peppermint oil.
# Place the remaining ingredients in a second bowl.
# Mix all ingredients well.
# Layer the red and white salts in a clear bottle or jar.
# place the lid on the jar and then put a paper doily over the lid, tie a red ribbon and a candy cane around the lid/doily.
The only problem I had was finding jars. I ended up having to melt the wax out of some candles in cute jars and going to the emergency room on christmas eve because the glass was really thin and while I was washing it out, it shattered in my hand. so don't do that.
just shell out the cash for real jars, because I tried to improvise and failed miserably (all our christmas pictures have me with a HUGE bandage on my hand. so funny!)