Okay, I got something very very basic for you, since that's what you initially requested. DropFix This got me interested though, decided to make something similar. If anyone's interested, here's a link to the github repo. ModExplosions
What's the difference between your "dropsfix" and "modexplosions"? ModExplosions seems to be able to vary the yield which is what the original request was for wasn't it (100% yield)? Whilst your ModExplosions is a good start it's still worth checking out HigherExplosions (unless you replicate the features - I've done some small updates but it would be nice to see someone take it over). Here's a snippet from the readme:
Exactly, DropFix is just a tiny plugin to cater for Mitelins request. I plan to expand ModExplosions, perhaps in a similar fashion to HigherExplosions, but the main goal would still be learning. I'm very new to both Java and Bukkit plugin development, so I wouldn't feel confident in other people using anything I made on their servers. I'm prone to making stupid mistakes.
naosia - that's cool Feel free to explore the HigherExplosives source on GitHub - it's not my plugin but toadmess released it under a MIT license (details on GitHub) which means you can use the source as long as you give credit (and even if you don't use the source directly it can be handy to read and learn from).