He rarely bought anything except jeans and causal shirts off the rack.
You may even be able to purchase the dresses off the rack.
If your wedding is soon, either purchase a dress off the rack or find a wedding dress vendor who can do a rush job to accommodate your schedule.
Some people prefer off-the-rack toddler clothes sold in department stores, which can certainly be inexpensive.
You can pick one from an off-the-rack line, or you can buy inexpensive replicas of very expensive designer handbags.