Shipping Module- modification for delivery

OK I am on 1.3.8a and have a few mods- mostly admin etc.

I looked through faqs and did searches but am not finding this question answered-

Is there a shipping module that allows them to choose delivery? We are a diaper service/store and need to have that option for them... I noticed there are a few delivery date mods but I wasn't sure if it actually let them pick delivery for the shipping method... welcome any input here.

I am going to look at the documentation on cloning a method but I am new to that so not sure it's in my "talents" :)

site is: https://www.greengoodnessdiaperservice.com
Live technically but just did some major overhauls so haven't started full advertising yet :) for the new site (we have been in biz since 2007)

Thanks all!