This is the first time I've posted using my phone. Hoping it works. Here are 10 strange bottles that might be found while adventuring.
1. A simple a clay bottle that has unseen cracks around the outside. When liquid is poured into it within a day all the contents will have leaked out.
2. Thick glass tinted blue makes up this fat bottomed bottle. The cork is attached by a wire. There is a trace of liquid at the bottom. A left over potion of flying. It'll cause the imbiber to shoot up in the air 10' then fall. GM should determine if damage should be rewarded.
3. A broken bottle lays on the ground. If a magic-user puts his hand near it the bottle will reform. It looks to have been carved from a single piece of crystal. If the mage becomes separated from the bottle, it'll shatter at nightfall.
4. A bottle hovers in mid air. It looks to be made of crude glass with something inside. The bottle isn't magic but it is a trap. The bottle sits on a wood pole with dozens of spikes and rusted blades waiting to render flesh. This pole was turned invisible. Anyone who tries to grab the bottle will be impaled. At that time, the pole appears. The bottle has rain water inside.
5. A wine bottle looks intact. It sits in a small basket. The seal is broken but the cork is in place. The seal is of a local winery. It is half full. Oh, and it's laced with centipede poison.
6. A two tiered bottle. It is tinted green glass. There is a light colored liquid in the top and a dark liquid in the bottom. In the middle is a button. If the button is pushed, the liquids mix and a bright light shines in all directions. It remains cool to the touch. This lasts for one hour then goes dark. The bottle is valuable on it's own.
7. The bottle appears to sweat blood. Red droplets form on the surface, trickle down the sides and pool around the bottom.
8. A crude clay bottle with a moon seal on the front is nestled into a crevice. This bottle comes from the fey. If the gift is excepted, the PC gets a visit from the fey while he sleeps demanding a favor.
9. A bone bottle, yellowed with age. It has an inscription running in a single line at the base.
10. Rare red glass bottle. It's stopper is a cut ruby. An alchemy tool used to create enhanced potions.
Hope you find use for these bottles.