Yes you can . Clean up your tip real well then take a piece of fine
stiff copper wire something like the old telephone wire .
Wrap it tightly 5 or more times around your tip so it stays on then bend
out a short piece at the tip end long enough to solder with the end of
the fine wire .
Tin the wire onto the tip andthe end of the wire .
This will get you by for a few quick SM jobs . After you are done just
pull the wire off your gun .

I have done this in a pinch with a big Weller 140 watt gun .