you can do it with this command; "/give @p minecraft:banner 1 15 {BlockEntityTag:{Patterns:[{Color:1,Pattern:bri},{Color:0,Pattern:mc},{Color:15,Pattern:flo},{Color:0,Pattern:cr},{Color:0,Pattern:sc},{Color:4,Pattern:rd},{Color:3,Pattern:ms},{Color:1,Pattern:bts},{Color:14,Pattern:mc},{Color:1,Pattern:tts},{Color:0,Pattern:gru},{Color:15,Pattern:gra}]}}"