This is a small project that i made in 2 hours for fun. This datapack will add craftable spawners and spawn eggs to change the spawner. you can have the crafts with "/recipe give <player> *"and using the recipes book on a crafting table or inventory (i didn't created the crafts of donkey, mule,elder guardian,vex and others because they are useless and the elder guardian is a sort of boss (unrar before installing)
for the ones who dont know how to install a data pack you just have to open your world in your save folder and drop the datapack in the folder named datapacks,launch minecraft (in 1.13 version) ,open the world you installed the datapack in,and thats all
all

Download by using the download map button or this link :www.mediafire.com/file/dlc1dywqvl89s1j