The present invention relates in particular to a device for affixing to a surface (S) at least one ephemeral decorative and / or informative pattern (M), characterized in that it comprises, at least, from its apex in the direction of its base: - an upper sheet (2) forming a stencil, in which is defined at least one decorative and / or informative element (20) whose outline corresponds to the outline of said pattern (M) to be affixed; a lower layer (5) of a double-sided adhesive material; and, optionally, a removable ply (6) for protecting the lower face of said lower ply (5), said upper (2) and lower (5) plies being traversed right through by an integral cut (200), almost integral or by partial cutouts (400) which follow (follow) said contour of said decorative and / or informative element (20).
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