There are a plethora of synonyms for the phrase "patch together." Some alternative phrases include "make do," "cobble together," "piece together," or "assemble hastily." Additionally, other phrases that have similar meanings include "jury-rigged," "slapdash," "botch," or "ad hoc." These synonyms all reflect the notion of creating something out of limited resources or making something work with meager materials in an improvised manner. Regardless of the specific synonym chosen, each phrase conveys a sense of urgency and resourcefulness of making the best of what is available.