I have lab access, and enjoy adopting neopets from the pound, raising their stats, zapping them until they turn an interesting color or species, then returning them to the pound to find a permanent home. I've fostered the following pets:

papadori (before lab access)
kahhkoorah became a pink kau
moutwat became a faerie grundo
wangletian became a silver shoyru
Laipani became an orange meerca
Lammou became a grey ixi
Jakaranda became a darigan kougra
ominaeshi became a white lupe
zawerdf became a brown buzz
Haellanie became a snow tuskaninny
Cebyr became a cloud lupe
Cayliang became a faerie shoyru
Whysteariea became a purple uni
habahachy became a desert tuskaninny
Cvanaca became a tyrannian ixi
saniacha became a snow chia
oinama became an island tuskaninny
ortogon became a maraquan bruce
Mkaudy became a starry kau
orisx became a cloud elephante
Peppridge became a purple flotsam
syberise became a desert chia
yosharani became an invisible lenny
Mimithezimi became a mallow grundo
Mamechant became a jelly skeith
zibox became a snow aisha
Bhiill became a rainbow gelert
Ohaidur became a purple bruce
Irradellis became a spotted tuskaninny
Xeromer became an orange gelert
Oratina became a rainbow meerca
Cisquaxxx became a faerie lenny
cergig became a halloween gelert
exitier became a robot techo
chiumbow became a faerie ruki
JingFei became a fire skeith
Layzhak became a gold aisha
Nuilor became a pink moehog
nicolsaca became a spotted usul
maganiximo became a spotted lupe
kenasie became a skunk usul
heferi became a pink ruki
Radonana became a tyrannian ixi
Orakh became a tomato chia
oneyea became a maraquan cybunny
Ikabobi became a maraquan elephante
Eymzk became a brown aisha
teoxer became a ghost techo
herminnny became a Darigan Grundo
tellexia became a maraquan kyrii
acualim became a zombie peophin
scoiattolex became a white hissi
Blacania became a shadow kougra
Farororn became a pink quiggle
Chailioo became a darigan korbat
leenoda became a mutatnt grundo
hammontan became a maracite usul
Taezars became a Christmas blumaroo
elleven became a checkered kau
zamoru became a halloween flotsam
tuanni became a speckled techo
ciduo became a striped bori
qirid became a sketch yurble
saetrini became a glowing meerca
cachoton became a rainbow kougra
capissimo became an electric buzz
hanyota became a mutant ixi
Eitly became a white grarrl
wovern became a sketch blumaroo
belieanna became a disco usul
flameider became a jelly scorchio
ossitos became a faerie lupe
garnnox became an electric tuskaninny
Gyremek became a striped xweetok
Caisala became a pink Ogrin
Gasmalus became a robotic wocky
Gimko became a Desert Blumaroo
Thasy became a Tyrranian Gelert
wansbrough became a darigan bori
Olliera became a tyrannian lenny
Gimko became a lost desert blumaroo
Pidgae became a white pteri
Zettica became an elderly aisha
alagory became a pink xweetok