To avoid temperature variations encountered in a toaster oven I use the regular kitchen oven and a cookie sheet.
Preheat to about 440f +- 5F
Have your 'quench' oil at the ready ... I use olive oil.
The most important part is prep work on the piece/pieces to be 'strawed'.
I can't stress this enough ... your parts must be a mirror finish with all scratches removed with wet/dry emery cloths paper ... I use 3 grades 1000, 1500 and 2000 grit.
Once all scratches etc have been brought to a mirror finish you are ready for the stove.
Generally your looking at about 15 minutes in the oven but you will have to play with that for the results your after.
OH NOOO ... I messed up !!!!
No worries, just do it over - but don't take ANY shortcuts.
Have Fun and DON'T try this on Granpa Georg's 1898 GL original ya ??