Rebecca chose a bud vase to try which is a good rule of thumb for a new-to-you project: test out your skills on a small item. She covered the top of her vase with glue and used gold craft paint to paint the "dipped" portion. (Depending on your coating material, you could also actually dip your object - use a quick in and out motion and let it drip over the paint container before turning it, paint side up, to dry).
I'd suggest you stick to dipping or faux-dipping only one piece of an object, i.e. half a plate, the bottom of a glass. If you're painting a number of items that will be arranged together in a group, especially if the objects are similar, try painting different parts (the top of one vase, the bottom of another) for interest and whimsy. I would not suggest "dip" painting surfaces that will come in contact with food or beverages, but try the bottom and stems of wineglasses, silverware handles, vases, baskets, statues, or trophies. Also consider dip painting chair and table legs, cabinet hardware and lamp bases. Fashionistas might want to try the effect on the toes and heels of their shoes.
Looking for an end result that's a little less glam and a lot more neon (a trend we've been noticing more and more of recently)? Try PlastiDip, a liquid coating that dries to a rubber-like finish. For something a little more practical, try chalkboard paint (wine glasses with their bases dipped in chalkboard paint would be great for a party instead of fussy wine charms).
You can check out Rebecca's project at Loving Living Small.