I went to the health food store first and bought an itsy bitsy jar for around $7.00. That was enough to make one recipe. Then I went to the Bulk Barn and bought the same size (itsy bitsy) jar for $4.50.
As I was driving home I was completely discouraged bacause I realized this was not going to be the cheap and fun project I was hoping for. I really wanted to find an affordable little gift to give to people that I wouldn't normally buy gifts for.
I came home and made a batch. Everywhere I read stressed NOT to add too much water so I was very very skimpy when adding it. My first few attempts to mold the bombs failed because there just wasn't enough liquid in the mix. Once I got the mix "right", things seemed to me moving along quite well.
It became apparent as they were drying that cracks were forming. I went back to the Internet and realized it was because I didn't pack the molds tight enough. Lesson learned.
The batch I made yielded three bombs and a mini-bomb. I used the mini bomb yesterday morning and Joe used one last night. We both loved them!
I didn't really follow one particular recipe, I took bits and pieces from many different ones. If you "Google" "bath bomb tutorial" you will get a million hits. Most recipes are the same, you just need to decide which one you're going to follow.
On a positive note, I found a place online that sells 2 KILOGRAMS of citric acid for $11.00. I've ordered some, along with some different fragrances to make more bombs for gifts.