It depends entirely on which god/dess you are working with.
Some require very specific things in terms of sacrifice (including specific days), or continuous offerings.
Others may speak to you personally and want something that is not typically well known for them (upg).
I'd start by looking up what was typically given to the ones you work with, what sort of offerings they like, etc. and start laying it out.
If you want to give more, you need to ask THEM what they want, as they are the ones you are trying to please.
(Also, keep in mind that sacrificing and offerings doesn't automatically mean they will bless you.)