manufactured

assembled, built, constructed, erected, made up, put up, raised, reared, set up, structured, threw up

crafted, handcrafted

hewed

forged, molded, shaped

cobbled (together or up), knocked out, patched (together), threw up

prefabricated

created, invented, minted, originated

established, fathered, instituted, organized

concocted, contrived, cooked (up), designed, devised, imagined, thought (up)

conceived, envisaged, pictured, visualized

refashioned, remade, remanufactured

coined, designed, hatched, produced

daydreamed, dreamed (or dreamt), fantasized

conceived, envisaged, envisioned, imagined, pictured, visioned, visualized

ad-libbed, extemporized, improvised