Locating Certain Items

[MiLoLaMb]

Hey Guys, 

 

I have a BTeam server that I hang out with a few people and they added some friends on. Now they all became witches. I was wondering how I could find their poppet holders. I did specify that people could have 2 but it seems like people have made like 3 or 4 and stashed them around the world. 

 

I know there is an item but that means I have to search myself. Is there any other way to find them ? 

 

P.s. I have 32GB of RAM but my server only uses 3GB and my Client uses 1GB, how do I upgrade this ? (Windows 7 Ultimate with 64Bit Java 7)