This is a sunflower made of a few parts of different models from
thingiverse and then scaled and corrected to print well.

I printed this one with a davinci 1.0 printer using slic3r gcode at 0.2
layer height. I then cleaned up the print in an acetone bath I made,
then just dabbed some black model paint on the centre with a fine
sponge and glued it all together.
NOTE- I didn't put a hole for the stem in the centre piece so that you
can drill a hole and mount it at any angle you choose.