I now possess three wristbands in Rising Star Game. They are FT 27 India, FT 28 Malaysia and FT 29 Thailand. I got them by playing Festival World Tour.
To play Festival World Tour, you need 1 Starpro or Backstage Pass. I don't have a Backstage Pass. So I bought 1 Starpro from Tribaldex and played it.
1 Starpro costs 2.75 Hive. So I can't play too many Festival World Tour Mission. Each country lasts for one week to be played. So I played at least one Festival World Tour Mission per country week.
That way I got three wristbands up to now.