Yes, Starbucks will sell you some of their syrups. Not the Pumpkin Spice. If you don't use your earned stars in one year you lose them. They kept forgetting to credit my account with a star every time I bought a latte. I have so moved on! :-)
1/2 cup of pumpkin pie filling, 1 cup of sugar, 3/4 cup of water, cinnamon and nutmeg spices. Bring to a boil. Simmer for about 10 minutes. (stir often) Let it cool and store it in your refidgerator. 1-2 TBS in your latte. (Don't use your nice Nespresso coffee for this, use ground beans from Whole Foods or some type. Please do not use Costco beans ever - terrible.) Use within 3 weeks. Try not to eat it straight out of the pan. It's that good.