Start with a square piece of paper.
Fold it horisontally in the middle a mountain fold.
Fold two of the corners to the center...
... and the other two, too.
Unfold the middle folding.
Fold horisontally on the middle a mountain fold.
Fold the bottom to the top.
Do the same for the other side.
Unfold the last foldings and rotate the paper 90 degrees.
Repete the last operations...
Fold on the diagonal a valley fold.
Open the last folding and then fold the other diagonal a valley fold.
Open the last folding, flip and pinch the corner to create a figure as in the picture.
Flip, fold the upper corners up and the lower corners down.
Fold the right and left sides to the middle.
Open the middle paper edges, while folding up the upper triangle and folding down the lower triangle to obtain two trapezoids.
Pull out the right central corner from the center to the right.
Do the same for the left central corner.
Fold a horizontal mountain fold in the middle
Fold up the right corner and flatten it down.
The same for the left corner.
On each side fold the two sides to the middle.
On the right side, pull down the corner at the top (as in "bird base").
Fold it down (also like in "bird bases").
Do the same for the left side.
On the left side, fold the two edges to the middle.
Open the right one and flatten it down.
Do the same for the left side.
Fold a montain fold at the middle.
Fold the sides inside along the foldings you made before...
Invert the corners inwards.
Fold inside the upper part of the last folding.
Invert the white part inwards.
Do the same for the left part...
Pull the horn on the left a bit more to the left.
Invert down the end of the horn.
Fold the tail (on the right) inside.
Invert the ends of the left legs.
Fold in the ends of the right legs.
Fold in the ends of the ends of the legs...
Unfold the last fold and give a 3D shape to your Rhino.