summon armor_stand ~ ~ ~ {NoGravity:1b,Silent:1b,Invulnerable:1b,Marker:1b,Invisible:1b,Tags:["level_entity","block_receptor","slime_block","unhappy"],Passengers:[{id:"minecraft:furnace_minecart",NoGravity:1b,Glowing:1b,Invulnerable:1b,CustomDisplayTile:1b,DisplayOffset:-8,Tags:["level_entity","block_indicator"],DisplayState:{Name:"minecraft:slime_block"}}]}

execute if block ~ ~ ~ command_block run setblock ~ ~ ~ air