You remember the Rockman Dot Straps, maybe? Although the first set has yet to go on sale, the second set is already revealed and available for pre-order. As hinted at before, this set of nine includes Rockman, the six original Rockman Robot Masters, and two secret dot straps. Each box comes with eight, however, which might be a tad inconvenient... If these are up your alley, you can pre-order them at AmiAmi for ¥3,100 (roughly $36.58 US). Along with the original batch, you can have the most inconvenient but decorative keyring ever.
Thanks to Heidi for the tip!