on that note....here are my initial thoughts!
+ eclectic will be a key word [again, and yet even more this time]. a fun mix of things that don't look like a pre-packaged set.
+ a bit of a traveled look would be a plus. like, this little boy has been places. like, this little boy must have dual citizenship to a foreign country. oh yeah. HE DOES. could totally tell from his room.
+ a bolder dose of pattern and/or artwork. something large scale.
here are some images for you. shaken, not stirred.
i definitely wouldn't be buying all new gear. let's get that straight, right from the get-go. those of the perceptive eye would note that the antlers + ikea canvases are already owned. as are the chartreuse ikea pillows which i think would be sharp with hits of red, grey + tiny touches of blue in the room as well. the dangerous book for boys was an amazingly spot-on christmas gift to our little tyke, and we were also gifted a much-loved-upon vintage bowling pin. ours has hot pink details, but i think H is oozing enough manliness to make even a dash of hot pink in his room seem ever so cool.
as for other elements in his current nursery, many would be easy enough to switch over to a whole new scheme. the vintage pendant light? paint it! the letters? spray 'em, baby! the curtains? re-trim in a new color! why not!
so now you know what decorating dallying my brain's been doing....anything to distract me from that pesky master boudoir that i can't seem to finish. oh + speaking of master....we would never forget the master rhino himself who would be a perfect fit for our all-grown-up-little-boy room.