Use images for drawing an arrow

Question

Is it possible to draw arrows (preferential with TikZ) with two images: One for the line and one for the tip?

I would like to realize something like this:

Answer 1

Here is a different approach from what @percusse suggested. I used decorations to get the rectangles along the line:

\documentclass[10pt,a4paper]{article}
\usepackage[utf8]{inputenc}

\usepackage{tikz}

\usetikzlibrary{shapes, decorations.shapes, }

\begin{document}
    \begin{tikzpicture}[decoration={shape backgrounds,shape=rectangle,shape width=4mm, shape height=10mm},
            paint/.style={decorate, draw=#1!50!black, fill=#1!50}]]
        \node (A) at (0,0) {};
        \node [isosceles triangle, isosceles triangle apex angle=120, draw=blue!50!black, fill= blue!50, inner sep=1.1mm] (B) at (3.05,0) {};
        \path [draw, paint=blue, decoration={shape sep=0.5cm}] (A)-- (B);
    \end{tikzpicture}
\end{document}

It can be tweaked to wrap it into a single macro that takes for argument e.g. the length.

EDIT: Here is another version that is rotationally correct:

\documentclass[10pt,a4paper]{article}
\usepackage[utf8]{inputenc}

\usepackage{tikz}

\usetikzlibrary{positioning, shapes, decorations.shapes, decorations.markings}

\begin{document}
    \begin{tikzpicture}[%
    paint/.style={draw=#1!50!black, fill=#1!50},
    linedeco/.style={decoration={%
        markings,
        mark=between positions 0 and 1 step #1 with {\draw (-1mm,-5mm) rectangle (1mm,5mm) [paint=blue];},
        mark=at position 1 with
            {\node [paint=blue, isosceles triangle, isosceles triangle apex angle=120, inner sep=1.1mm, transform shape] {};
            },
        }}]
        \node (A) at (0,0) {};
        \node (B) at (3,5) {};
        \path [paint=blue, decorate, linedeco=0.05] (A)--(B);
        \node (C) at (0,-2) {};
        \node (D) at (3,-2) {};
        \path [paint=blue, decorate, linedeco=0.1] (C)--(D);
    \end{tikzpicture}
\end{document}

It takes a parameter you need to set manually, depending on the angles.