/give @p skeleton_spawn_egg[entity_data={id:"minecraft:marker",Tags:["sfr_place"]},item_name='{"bold":true,"color":"#FF0000","text":"SFR spawner"}'] 1
SFR SPAWNER

/give @p skeleton_spawn_egg[entity_data={id:"minecraft:marker",Tags:["sfr_killer"]},item_name='{"bold":true,"color":"#FF0000","text":"SFR killer"}'] 1
SFK KILLER
