There is no a bitcoin testnet that Support all kinds of non-standard transactions.

As we Know,so I builds the OmniTestNET site to get the goals.

Feature:
1.Support All kinds of Bitcoin non-standard transactions
2.Generate block Every 10 minute
3.based on bitcoincore 0.9

Guide:
1.Get TEST BTC at GetTestBTC  : http://107.170.99.203/GetTestBTC
2.DIY your transactions and boardcast at PushTX : http://107.170.99.203/PushTX
3.Explore Blockchain Blockchain: http://107.170.99.203:2750

Non-standard transactions such as:
1、
scriptPubKey : OP_CHECKSIG  
scriptSig :                                  

2、
scriptPubKey :                            
scriptSig : OP_TRUE                          

3、
scriptPubKey : OP_RETURN                

4、
Puzzle
scriptPubKey : OP_HASH256 OP_EQUAL
scriptSig :                                                  

and so on

Welcome to donate BTC:14JHFTBbJBRM4qCw4AxoKMisPJ9z3cD9us

+4/10/2014:thers is a bug, repairing....

+April/11/2014:Bug is repaired. All is ok。
A sample Non-standard transactions :
http://107.170.99.203:2750/tx/4bb54f1c4d3718bdb9fecb17e38ca8cf347d2e390ff5a2232b12f95a740bafbf