tinkered

from The Collaborative International Dictionary of English v.0.48

Tinker \Tink"er\, v. t. [imp. & p. p. {Tinkered}; p. pr. & vb.
   n. {Tinkering}.]
   To mend or solder, as metal wares; hence, more generally, to
   mend.
   [1913 Webster]