For the Mandelbulb 3D enthusiasts out there, I'm putting up some of my best images along with their formulas. Click here to see the complete list.

These two are based on Lenord's Tuberland formula Links to Hal Tenny's tutorials based on Lenord's formula are listed below.

Mandelbulb3Dv16{
O.....S...EA/...Y/...2....EvFI/F4oliz8WsOVh0ot.EBg8fDSe/..IOUjVRA6.wzQVJIRA/scuj
................................sPVaNPZKF/2........Y./..................y.2.....
................/M.//....6kp....M/....E2.....QVxS5YK91lD/..........c./...wX.BnAH
z.....kD/.../2......................IsuFVf53..A..................y1...sD...../..
.w1...sDWl9s6VoA1wXCv6Qrows0z804xWE5cIdDgVqzEE1Anvfr4k5biqruyaIo2JkQmxkjQYlH1LUp
7wX3gHQr9rS.z.dGdu.vNSjj......o3......................sD..kz0...........OaNaNaNa
D.A...........................MRb4.4qRO.kOrd/UoRb4.srRO.sVrd/.FSb4..............
................xzzzzzzzz1.U..6.R/...M0...EB....51...A1....F....8/...E2....UJl2A
...U.ydelyjeYFnzTeOgzf8No.6.1c..zzzz.s0alwF.HWwjiSyqwCg7mz1...........k.8.kXWF1.
QvM93P58iz9GMmnWK2zwz0........../6U0.wzzz1................................E.0c..
zzzz.................................2U.8.kzzzD.................................
/6U0.wzzz1...................................Q5jU0kiuq8.Wfmdp32.I.F3.s3GrK6T.gPg
m0.gblbVe0U.1A..DtKH537.ahZI.MtTL3Ya.AaLP/Uaz39e5/kGlB3..zbIiC2.DwU0.oxTr4YH.UdW
B0ktztPNt0.IBF3....crI0.zzFoTu2.yzngi84.xzZX.45.................................
E....6....E/....2....A....EEh3aSdtqNU6oPs/.IjR5.......................k/9.......
...................../........yD..........2.....................................
................................................................................
.....................c....U/....1....MoPgFKOiR467t4RU.pPr/......................
8..0...........................E........o.A........0./..........................
................................................................................
................................}

Mandelbulb3Dv16{
O.....S...EA/...Y/...2.....U24OM5SrjzGcTixgBFt.EBIVMM8TI..20vDN/kS4wzUIbq2sUq3vj
.......................................6m/2........Y./..................y.2.....
................/M.//....6kk....Y/....E2.....63uy8.BI.jD/..........c./...wX.BnAH
z.....kD/.../2......................IsuFVf53..A..................y1...sD...../..
.w1...sDWl9s6VoA1wXCv6Qrows0z804xWE5cIdDgVqzEE1Anvfr4k5biqruyaIo2JkQmxkjQYlH1LUp
7wX3gHQr9rS.z.dGdu.vNSjj......o5......................sD..kz0...........OaNaNaNa
D.A...........................MRb4.4qRO.kOrd/UoRb4.srRO.sVrd/.FSb4..............
................xzzzzzzzz1.U..6.R/...M0...EB....51...A1....F....8/...E2....UJl2A
...U.ydelyjeYFnzTeOgzf8No.6.1c..zzzz.s0alwF.HWwjiSyqwCg7mz1...........k.8.kXWF1.
QvM93P58iz9GMmnWK2zwz0........../6U0.wzzz1................................E.0c..
zzzz.................................2U.8.kzzzD.................................
/6U0.wzzz1...................................Q5jU0kiuq8.Wfmdp32.I.F3.s3GrK6T.gPg
m0.gblbVe0U.1A..DtKH537.ahZI.MtTL3Ya.AaLP/Uaz39e5/kGlB3..zbIiC2.DwU0.oxTr4YH.UdW
B0ktztPNt0.IBF3....crI0.zzFoTu2.yzngi84.xzZX.45.................................
E....6....E/....2....A....EEh3aSdtqNU6oPs/.IjR5.......................k/9.......
...................../........yD..........2.....................................
................................................................................
.....................c....U/....1....MoPgFKOiR467t4RU.pPr/......................
8..0...........................E........o.A........0./..........................
................................................................................
................................}