Are they labor and/or materials intensive?
I would probably make at least one or two - see how it goes over - and go from there.
If your pastor/minister/priest/leader says it's okay for you to do it - why not?
Why do you feel that you can't do it alone? (If it becomes a huge success - you may need others to keep up to the demand, but if that happens, it might be easier to get others to participate if they see how well the items are well-received.)