Man, I've been wondering the best stuff too.
I just launched mine for Sinfully Yours recently and have several levels of rewards.
$1 is a thank you
$2 Patron only feed! In this feed, you will see layout breakdowns, speed paintings, sketches and more!
You will also help me get coffee and get a shoutout!
$3 Everything as above, but you also get early access to new pages. I will stay 2 pages (or more) ahead of everywhere else so you get to know what adventures (or mishaps) our loveable boys get into before anyone else!
$5 As above, but you also get to see the uncensored pages as well as all other NSFW art I post. Lucky you
$10 All above rewards PLUS you will get a character sketch signed just for you. I won't even post this art anywhere else unless YOU say I can! limited
$25 All rewards from $1 - $5 dollars and you will get a professionally printed, full color print of any character, panel, or page of your
choice. This will be signed and sent straight to you! This is for the biggest fans of all.