Is there anything that has worked for you in the past? I made this poster that I drew pictures of things that I like to do and try to use them at the moment.
BBQ; take a bath & light candles (candle light only) & eat a bowl of your favorite ice cream with chocolate on it (or your favorite topping!); Walk (w/dog too); play cards; listen to your favorite CD; bake; read a hystorical romance book; rest; use a word find puzzle; & your own ideas.

I have even made an emergency basket for these occassions. I keep my safety plan in there along with a small bottle of bubble bath (to remind me of that option), a small candle, favorite scents that soothe me, crosssword/sudoku puzzles, blank paper to remind me to write, crochet needles, a favorite recipe, etc.

Trying to find what works for you will come to you.