This is a hand-grenade made from a watermelon. Although it looks a bit "abstract", it's actually extremely powerful.
The model is over 200 KB in size. You need to prepare ES File Explorer, TXD TOOL, and IMG TOOL.
Installation:
Open the ES File Explorer, click on Internal Storage, then click on Android, then obb. When you see the folder with the Grand Theft Auto: San Andreas icon, click to enter. Rename the files inside by adding ".obb". Then click on the compressed package, and extract gta3.img from the texdb folder and the folder named gta3 (one is an img file, the other is a folder). Then unzip dff.zip and txd.zip in this compressed package file (they contain dff and txd files).
Click on IMG TOOL, open gta3.img in the texdb file, search for "grenade", delete it, and then put the unzipped watermelon hand — grenade file (grenade.dff) into it.
Then open TXD TOOL. In gta3.txt, click on the second icon for the txd file at the bottom — right corner, select grenade.txd, click "Select" (Open), then click "Overwrite and Create Association", "Quick Overwrite". Don't fix the capitalization, and that's it.