my conclusions: dye-based ink works better than pigment; the flatter the flower, the better the image transfers; paper flowers take ink slightly better than fabric ones...which can become very slightly blurry; 7 gypsies pre-inked stamps work just fine & are easily positioned; the more contrast between ink color and flower color the better it shows up; a medium sized stamp transfers better than a really big all-over image b/c of the uneven surface. on a personal note: i think i like the allover patterns the best, especially the crackle effect, the wood grain and the leopard spots!
one last tiny (and ultra-specific) tip: see this "inkblots" stamp by DOTS? it's cute, right?
...until you stamp it in RED, and then you've got...
blood splatter!!! (lol!)
...hmmm...i think we'd better save that one for halloween!
UPDATE: lesley has actually written a fantastic tutorial on altering flowers via stamping (& other cool ways) that you DEFINITELY want to read! you can find it here.