I should also say, the reasoning for these suggestions is simple, and it's a selfish one: I hate doing eden quests. Yes it has very good rewards, but I still don't want to do it. Farming too-easy low level maps, farming with multiclients, repeatedly going back to town every minute to turn in quests, these are the 3 things that I find the most boring in this game, and all 3 are pretty much necessary for eden coin farm. Bubblegum is a necessity to keep up with others and make zeny in this server, so I want alternative ways to farm it for people like me.
I already buy my bubblegum from market/cash shop, but there it usually costs around 3.4m/4m respectively, which feels bad. If its added to Muh Coin Shop so I can join events and buy bubblegums with the reward each day instead of doing eden quests, I'd be happy with that too.
(Note that I'm not asking for these alternatives to be better than the current method, doing eden quests with multi client can remain the best method for bubblegum farming, I just want the alternatives to be less inferior.)