How do I create multiple child records by specifying a date range?

I had this exact same need and had to hire a consultant to create a script. It is 200 lines of code. It works great, but at a high cost relative to a non-code solution. I would love a non-code solution. I don't know how it can be done, though. I would be interested in possible suggestions too. One thing that greatly facilitates my script is a Calendar table that has one record for every business date. The script can pull a subset of those records between the start and end dates to drive the looping.