Trees can be quite efficient but I find that you kind of want them on a separate stand (the tree). I have DW hoop-mounted percussion clamp that I use for my cowbell (a beautiful Meinl hand-hammered one) or my tambourine if I need it.
I would wager a cowbell, tambourine (headless), and a block would get you started on some cool stuff.
And I'd be remiss if I didn't bring up the block groove in "All I Know
" by Karnivool in the bridge. That one will give you plenty of inspiration for using these things.