Do you have 20k instagram followers (or have podium ambitions)?
If not, don't even bother cold calling to sponsors. You are not unique, there are masses of people doing this sort of event. The people who will sponsor you are close to you and view you as unique.
You have three options -
*raise some money from the three Fs who don't expect any return on their investment - Friends, family (google the other one)
*go this one alone. Document the whole journey unsponsored. if you create an inspiring and engaging story theme, then you have an actual pitch under the "Sponsor wanted" title
*can't believe I'm actually saying this, but chugging is an option. that's a portmanteau for "Charity mugging". Go and do this in aid of a charity, raising funds as part of the drive. There's a host of people who do this and then channel some of the funds towards their costs - sometimes transparently. It's incredibly unethical in my book, but lots of shysters out there.
