skull on wall
/give @p minecraft:banner 1 0 {BlockEntityTag:{Base:0,Patterns:[{Pattern:sku,Color:4},{Pattern:sku,Color:4},{Pattern:sku,Color:7},{Pattern:bri,Color:7},{Pattern:bri,Color:1},{Pattern:sku,Color:7},{Pattern:sku,Color:7},{Pattern:sku,Color:7},{Pattern:sku,Color:7},{Pattern:sku,Color:7},{Pattern:sku,Color:7},{Pattern:sku,Color:7},{Pattern:sku,Color:7},{Pattern:sku,Color:7},{Pattern:sku,Color:7},{Pattern:sku,Color:7},{Pattern:sku,Color:7},{Pattern:sku,Color:7},{Pattern:sku,Color:7},{Pattern:sku,Color:7},{Pattern:sku,Color:7},{Pattern:sku,Color:7},{Pattern:sku,Color:7},{Pattern:sku,Color:8},{Pattern:sku,Color:8}]}}
America FLag
/give @p minecraft:banner 1 0 {BlockEntityTag:{Base:15,Patterns:[{Pattern:ss,Color:1},{Pattern:ss,Color:1},{Pattern:ss,Color:1},{Pattern:ss,Color:1},{Pattern:tl,Color:4},{Pattern:tl,Color:4},{Pattern:tl,Color:4},{Pattern:tl,Color:4},{Pattern:tl,Color:4},{Pattern:tl,Color:4}]}}
Pumpkin
/give @p minecraft:banner 1 0 {BlockEntityTag:{Base:14,Patterns:[{Pattern:cre,Color:11},{Pattern:cre,Color:11},{Pattern:cre,Color:11},{Pattern:tts,Color:2},{Pattern:tts,Color:2},{Pattern:tts,Color:2},{Pattern:tts,Color:2}]}}
mojaNG syMbol
/give @p minecraft:banner 1 0 {BlockEntityTag:{Base:14,Patterns:[{Pattern:ld,Color:4},{Pattern:rd,Color:10},{Pattern:rd,Color:11},{Pattern:dls,Color:10},{Pattern:moj,Color:14},{Pattern:moj,Color:14},{Pattern:moj,Color:14},{Pattern:moj,Color:14}]}}
Big dot
/give @p minecraft:banner 1 0 {BlockEntityTag:{Base:14,Patterns:[{Pattern:bo,Color:4},{Pattern:bo,Color:4},{Pattern:bo,Color:4},{Pattern:bo,Color:4},{Pattern:sc,Color:10},{Pattern:sc,Color:10},{Pattern:sc,Color:10},{Pattern:sc,Color:10},{Pattern:flo,Color:10},{Pattern:flo,Color:11},{Pattern:flo,Color:11},{Pattern:flo,Color:11},{Pattern:flo,Color:11},{Pattern:flo,Color:11},{Pattern:flo,Color:11},{Pattern:flo,Color:11},{Pattern:flo,Color:11},{Pattern:mr,Color:11},{Pattern:mr,Color:11},{Pattern:mr,Color:11},{Pattern:mr,Color:11},{Pattern:mr,Color:11},{Pattern:mc,Color:0},{Pattern:mc,Color:0},{Pattern:mc,Color:0}]}}
no way to get in
/give @p minecraft:banner 1 0 {BlockEntityTag:{Base:0,Patterns:[{Pattern:bri,Color:15},{Pattern:bri,Color:15},{Pattern:bri,Color:15},{Pattern:bri,Color:15},{Pattern:bri,Color:15},{Pattern:bri,Color:15},{Pattern:bri,Color:15},{Pattern:bri,Color:15},{Pattern:bri,Color:15},{Pattern:bri,Color:1},{Pattern:ls,Color:10},{Pattern:ls,Color:10},{Pattern:ls,Color:10},{Pattern:ls,Color:10},{Pattern:rs,Color:4},{Pattern:rs,Color:4},{Pattern:rs,Color:4},{Pattern:rs,Color:4},{Pattern:cr,Color:11},{Pattern:cr,Color:11},{Pattern:cr,Color:11},{Pattern:cr,Color:3},{Pattern:cr,Color:3},{Pattern:cr,Color:3},{Pattern:cr,Color:3},{Pattern:cr,Color:3}]}}
british flag
/give @p minecraft:banner 1 0 {BlockEntityTag:{Base:4,Patterns:[{Pattern:cr,Color:1},{Pattern:cr,Color:1},{Pattern:cr,Color:1},{Pattern:cr,Color:1},{Pattern:sc,Color:1},{Pattern:sc,Color:1},{Pattern:sc,Color:1},{Pattern:sc,Color:1},{Pattern:sc,Color:15},{Pattern:cr,Color:15},{Pattern:sc,Color:1},{Pattern:cr,Color:1},{Pattern:cr,Color:15},{Pattern:cr,Color:15},{Pattern:cr,Color:15},{Pattern:cr,Color:15},{Pattern:cr,Color:15},{Pattern:cr,Color:15},{Pattern:cr,Color:15},{Pattern:sc,Color:15},{Pattern:sc,Color:15},{Pattern:sc,Color:15},{Pattern:sc,Color:15},{Pattern:sc,Color:15},{Pattern:cr,Color:1},{Pattern:sc,Color:1},{Pattern:drs,Color:1},{Pattern:drs,Color:15},{Pattern:dls,Color:15},{Pattern:cr,Color:1},{Pattern:cs,Color:15},{Pattern:ms,Color:15},{Pattern:sc,Color:1}]}}
simple Bricks
/give @p minecraft:banner 1 0 {BlockEntityTag:{Base:0,Patterns:[{Pattern:bri,Color:1}]}}
enderman
/give @p minecraft:banner 1 0 {BlockEntityTag:{Base:5,Patterns:[{Pattern:ss,Color:13},{Pattern:ss,Color:13},{Pattern:sc,Color:0},{Pattern:ms,Color:0},{Pattern:ts,Color:0},{Pattern:hhb,Color:0}]}}