You might also be interested in Crumpkin Model Replacer

Tired of the crit-granting pumpkin bags which drop from dead players during Halloween?

This script deletes Crit Pumpkins (aka Crumpkins) immediately as they spawn before anyone can pick them up!

To make it work on your Halloween map, put this script into scripts/vscripts/ folder and create a logic_script entity with Entity Script set to no_crumpkins.nut

To make it work on your Community Server, put the script file into scripts/vscripts/ folder and add the line script_execute no_crumpkins.nut to tf/cfg/server.cfg.

And don't forget to pack the script into your map!