Tinseling or Tinselling: How To spell?
The word Tinseling is misspelled against Tinselling, which is present continuous of "Tinsel"
Tinselling has double "ll" is mispronounced as "l"Remember double 'LL' in between the strings tinse & ing which should not be misspelled with single 'L'
Wrong Spelling:  tinse-l-ing  Correct Spelling:  tinse-ll-ing 
Find more wrongly spelled words of Tinselling to spell it well.