One thing to keep in mind: this is for decorative purposes only. Meaning you shouldn't use real flowers for the vase as the water mixed with glue and glitter would kill it. but you can use fake plants and flowers or just show off the vase itself!
Things you'll need:
Spray glue works best for this since it will deliver quicker results. You can use regular bottled glue but it would be more of a mess but if you don't mind the hassle and time then glue on!
Glitter- can be found almost everywhere. Your best bet of course would be the local art store. Depending on how big the vase is that you're going to use, you'll need a lot to cover the whole thing. For the size vase I have, I used 3 small packets of glitter so that should give you at least some idea of how much you might need.
Step 1: Getting the Glue Inside the Vase
Step 2: Coat the Inside of the Vase
Once that's done, Rotate the vase as you add more glitter until the top and bottom are completely filled out. You may also want to tilt the vase sideways, rotate it clockwise and then counter clockwise to fill in any missed spots you may have.
Step 3: Finishing Up the Vase
Other wise, all you need to do is set it some somewhere flat, put in some fake flowers or plants and you're done! Easy as pie!
I hope you enjoyed this quick tutorial and hopefully when you finish yours I can see the finished product. Good luck and have fun!