128899 - no! button

Pressing the button will cause all the ground to explode.

128744 - circle ferris wheel

A combination of two of Someoneelse's ideas. :)

128363 - disappearing ice cage

Mice must push the cage all the way one way or the other, and then the side of the cage will disappear.

127869 - teeth

After a short while the center two blocks raise up and three more fall down, making the return trip longer--but then the blocks on the end fall revealing another cheese and hole.

126937 - double trap

Both sides are actually lava. After a short time the center block falls to reveal cheese, then it falls some more and reveals a second hole.

126606 - lowering then raising bridge

The first button will lower the bridge, and the second one will raise it back up.

Stats as of Sept 17, 7pm

    57270     63%  11500   sliding cheese palace (map 24)
    66976     63%  10600   castle moat v2
    73039     63%  10900   exploding ground v2
    75929    -permanent-   horizontal exploding ground
    80199    -permanent-   exploding ground small boxes v2
   108937     65%   3600   double double explode v2
   108982    -permanent-   exploding, tall button
   113235     62%   2900   falling pyramid v2
   115767     60%   2400   box ends v2
  
   119389     62%    900   disappearing act
   119535     61%    900   three buttons, tall blocks
   119549     58%    800   temple v2
   121140     54%    600   invisible shortcut death
   123116     55%    500   scissor elevators
   123335     62%    500   trapped, but not
   123524     52%    442   disappearing funnel
   125096    -dead-        cheese shop v2
   125460    -dead-        invisible roller coaster (map 42)
   125493    -dead-        walker
   125997    -dead-        disappearing third chance
   126151     64%    308   raising exploding bridge
   126309    -dead-        helpful, hurtful blocks
   126606     63%     99   lowering then raising bridge
   126937     52%     82   double trap
   127869             34   teeth
   128363              2   disappearing ice cage

They seem to like the bridges.

Stats as of Sept 16, 4pm

    57270     63%  11200   sliding cheese palace (map 24)
    66976     63%  10300   castle moat v2
    73039     63%  10600   exploding ground v2
    75929    -permanent-   horizontal exploding ground
    80199    -permanent-   exploding ground small boxes v2
   108937     65%   3200   double double explode v2
   108982    -permanent-   exploding, tall button
   113235     63%   2600   falling pyramid v2
   115767     60%   2100   box ends v2
  
   119389     60%    600   disappearing act
   119535     60%    600   three buttons, tall blocks
   119549     57%    500   temple v2
   121140     55%    400   invisible shortcut death
   122272    -dead-        hurdles
   123000    -dead-        shaman?
   123116     59%    262   scissor elevators
   123246    -dead-        flip the switch?
   123335     61%    253   trapped, but not
   123359    -dead-        cheese shop
   123458    -dead-        interlocking disappearing blocks
   123524     52%    146   disappearing funnel
   123548    -dead-        disappearing funnel v2
   125096     50%    110   cheese shop v2
   125460     33%     69   invisible roller coaster (map 42)
   125493     39%     88   walker
   125997             18   disappearing third chance
   126151              8   raising exploding bridge
   126309              0   helpful, hurtful blocks

I think 123335 is the stupidest of all of these. That says a lot about the people who vote on these maps, I think.

I didn't post a picture or code for 125460. It was just a clone of map 42 with the cage sitting on invisible ice (with short stops on either side of the map).

126309 - helpful, hurtful blocks

Fast mice will hit a switch causing blocks to fall, so slower mice have an easier time getting across. But if mice are too slow, they'll get trapped by the next round of falling blocks.

126151 - raising, exploding bridge

The bridge is hidden below until a mouse steps on the left button. If they step on the right button, the bridge will explode. :)