After Reading this question I have searched if any Western democracy have used something similar to make political campaign financing more transparent.
From the accepted answer in the aforementioned question:
The idea is to fight the black money during elections, avoiding for instance money consequence of illegal activities. According to the electoral law, a person can donate only upto Rs. 2,000/- in cash. To donate more, you'll have to buy the bond and give it to the political party.
This sounds good in theory, so I am wondering if this sort of political funding was used by any Western democracy (US, Canada, European country) in the recent history (1990+).
Question: Are there any examples of electoral bonds or similar instruments usage in the Western democracies?