Create a direct mail (Post) campaign

I am looking for a creative and imaginative mind to help me develop a direct mail (through the letter box type direct mail) campaigns and create content. We are tired of the status quo. We have sent letters, postcards, fridge magnets, invitations. We are looking outside of the box. We need content and concepts that really convert into leads. We are selling a high end home improvement with an average price point of £25K If you have a track record of creativity and success in creating direct mail campaigns we would like to have a conversation with you in the first instance.