diff --git a/src/Evaluator/EvalValues/EvalValueHelper.hpp b/src/Evaluator/EvalValues/EvalValueHelper.hpp
new file mode 100644
index 0000000..5e3bca7
--- /dev/null
+++ b/src/Evaluator/EvalValues/EvalValueHelper.hpp
@@ -0,0 +1,60 @@
+#include <utility>
+
+#ifndef PORYGONLANG_EVALVALUEHELPER_HPP
+#define PORYGONLANG_EVALVALUEHELPER_HPP
+
+#include "EvalValue.hpp"
+#include "NumericEvalValue.hpp"
+#include "StringEvalValue.hpp"
+
+namespace Porygon::Evaluation{
+    class EvalValueHelper{
+    public:
+        static EvalValue* Create(unsigned char i){
+            return new IntegerEvalValue((long)i);
+        }
+        static EvalValue* Create(signed char i){
+            return new IntegerEvalValue((long)i);
+        }
+        static EvalValue* Create(short int i){
+            return new IntegerEvalValue(i);
+        }
+        static EvalValue* Create(unsigned short int i){
+            return new IntegerEvalValue(i);
+        }
+        static EvalValue* Create(signed int i){
+            return new IntegerEvalValue(i);
+        }
+        static EvalValue* Create(unsigned int i){
+            return new IntegerEvalValue(i);
+        }
+        static EvalValue* Create(signed long l){
+            return new IntegerEvalValue(l);
+        }
+        static EvalValue* Create(unsigned long l){
+            return new IntegerEvalValue(l);
+        }
+
+        static EvalValue* Create(float f){
+            return new FloatEvalValue(f);
+        }
+        static EvalValue* Create(double f){
+            return new FloatEvalValue(f);
+        }
+        static EvalValue* Create(long double f){
+            return new FloatEvalValue(f);
+        }
+
+        static EvalValue* Create(bool b){
+            return new BooleanEvalValue(b);
+        }
+        static EvalValue* Create(const string& s){
+            return new StringEvalValue(Utilities::StringUtils::StringToU16String(s));
+        }
+        static EvalValue* Create(u16string s){
+            return new StringEvalValue(std::move(s));
+        }
+    };
+}
+
+#endif //PORYGONLANG_EVALVALUEHELPER_HPP
diff --git a/src/UserData/UserDataTemplates.hpp b/src/UserData/UserDataTemplates.hpp
index 16cfa71..83ad0a1 100644
--- a/src/UserData/UserDataTemplates.hpp
+++ b/src/UserData/UserDataTemplates.hpp
@@ -92,7 +92,7 @@
 */
 #define PORYGON_PREPARE_FUNCTION(userDataTypeName, fieldName, returnType, ...) \
     static Porygon::Evaluation::EvalValue* invoke__##fieldName(void* obj, Porygon::Evaluation::EvalValue* par[], int parameterCount){ \
-        return new returnType(((userDataTypeName*)obj)->fieldName( \
+        return Porygon::Evaluation::EvalValueHelper::Create(((userDataTypeName*)obj)->fieldName( \
                 __VA_ARGS__ \
             ));}
 
diff --git a/src/Utilities/StringUtils.hpp b/src/Utilities/StringUtils.hpp
index 91cfe67..6fcfce3 100644
--- a/src/Utilities/StringUtils.hpp
+++ b/src/Utilities/StringUtils.hpp
@@ -15,6 +15,10 @@ namespace Porygon::Utilities{
         static std::u16string IntToString(long const &i) {
             return conv.from_bytes(std::to_string(i));
         }
+        static std::u16string StringToU16String(const std::string& s) {
+            return conv.from_bytes(s);
+        }
+
     };
 }
 
diff --git a/tests/integration/UserDataTests.cpp b/tests/integration/UserDataTests.cpp
index 8a98a66..5830bbb 100644
--- a/tests/integration/UserDataTests.cpp
+++ b/tests/integration/UserDataTests.cpp
@@ -8,6 +8,7 @@
 #include "../../src/UserData/UserDataFunction.hpp"
 #include "../../src/UserData/UserDataFunctionType.hpp"
 #include "../../src/UserData/UserDataTemplates.hpp"
+#include "../../src/Evaluator/EvalValues/EvalValueHelper.hpp"
 
 using namespace Porygon;
 using namespace Porygon::UserData;