Catholic clergy can accept most gifts. Priests enjoy music, movies, books and good food just as much as lay people!
GIve him a gift of volunteering, which means you speak to the priest's heart. I will be honest with you. I cannot give monetarily to the church. So, I write for My People newspaper as my contribution to the church.
Make a donation to the church. This shows the priest that you not ony care about him, but you care about the things he cares about.
Give a gasoline or car tune-up gift card. Many priests are often the pastor of more than one parish. I am sure the ability to keep their vehicles safe and running would be appreciated.
An invitation to have lunch or dinner at your house. Maybe he would like to actually sit at the kitchen table and have a real home-cooked meal.
Give good coffee, tea or wine. Go for the good stuff that he would never buy himself!
Give him cash! He may need practical things to buy for himself.
Pray for him. We ask our priests to pray for us, but they need our prayers also.
Give an Amazon gift card as a little "retail therapy". He could shop for basically anything at his own convenience.
These are just a few ideas on how to thank a priest. We are always told to do good to others or to bless others. Don't forget to include your priest.