Post threads with custom threadids

[NeverBored]

I want to post threads with a custom threadid, in addition to keeping the normal incremental number. I would want to add something like ?t=XXXXXXXX to the newthread link to set the custom threadid. Is this a possibility without extensive modification? Any help with this would be appreciated. I have the very basic understanding how this could be done, but am far from being knowledgeable in php especially when it comes to writing to the database. I've tried looking through files, but it's mostly been foreign to me. I'd like to keep this as simple as possible, I want to nothing else other than be able to assign the custom ids to threads in one forum.