From this week (so long as you have updated to the latest app), Twitter users can add images, videos, and GIFs to their quoted tweets. (these are like retweets but under your own handle)
Twitter is rolling out the new feature across Android, iOS, and Twitter’s mobile website; it’s not on desktop quite yet, however. Adding media to a retweet works just like you’d expect: tap the “retweet with comment” option and then choose the image or GIF icon in the toolbar.
As easy as that.. now give someone a retweet but add some humour or emotion to it with a GIF!!! Still, there's no edit button twitter (roles eyes emoji)