Fortunately, these are the kind of Rats we would all like to see more of...
Pictured above is the 1 Kilo, 2 Oz, and 1 Oz. coins. I think I heard that there is a 10 Oz. version as well, but I haven't been able to locate one. If you hear of one, let me know and I will swoop in like a hawk attacking a rat!
These kind of coins are what make stacking fun. The different varieties not only give me something aesthetically pleasing to look at, but also helps me set goals (i.e. trying to complete a series). Hopefully my children will get the same enjoyment out of them that I do.
Stack On!