I found this sticker for the fire extinguisher at Amazon: https://www.amazon.com/gp/product/B00MB1ORIW/ref=as_li_tl?ie=UTF8&camp=1789&creative=9325&creativeASIN=B00MB1ORIW&linkCode=as2&tag=thgrwaho-20&linkId=579b478850c93d5204484e70cd7bb22d
Winter Branch With Stars Fabric Wall Sticker from notonthehighstreet.com
Geometric Deer Head Wall Decals Geometric Animal by LivingWall
Or just buy Book Stairs Wall Stickers from http://www.vinylimpression.co.uk/ if you don't want to paint!
Mid Century Modern Danish Multi Colored Triangles by decalSticker, $84.00
This could be awesome on a wall with bottles/can/pints on it. Or bottle tops maybe? Could customise for ale festivals etc.
Toy story theme army soldier wall stickers/decal http://www.bouf.com/67794/toy-soldiers-wall-stickers.html
Safari Animals Wall Decal Africa Vinyl Wall Art by WallStickums, $22.00
feather with birds wall sticker by sirface graphics | notonthehighstreet.com
Rarer than a can of dandilion and burdock
silver birch trees vinyl wall sticker by oakdene designs | notonthehighstreet.com